Apply clang formatting.

Executed with:
`find . -regextype posix-egrep -regex ".*\.([hc]|fmt|function)" | xargs -L1 clang-format-12 -i`

Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
diff --git a/include/mbedtls/poly1305.h b/include/mbedtls/poly1305.h
index 6657aa2..fe7fe9e 100644
--- a/include/mbedtls/poly1305.h
+++ b/include/mbedtls/poly1305.h
@@ -39,7 +39,7 @@
 #include <stddef.h>
 
 /** Invalid input parameter(s). */
-#define MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA         -0x0057
+#define MBEDTLS_ERR_POLY1305_BAD_INPUT_DATA -0x0057
 
 #ifdef __cplusplus
 extern "C" {
@@ -47,18 +47,20 @@
 
 #if !defined(MBEDTLS_POLY1305_ALT)
 
-typedef struct mbedtls_poly1305_context
-{
-    uint32_t MBEDTLS_PRIVATE(r)[4];      /** The value for 'r' (low 128 bits of the key). */
-    uint32_t MBEDTLS_PRIVATE(s)[4];      /** The value for 's' (high 128 bits of the key). */
-    uint32_t MBEDTLS_PRIVATE(acc)[5];    /** The accumulator number. */
-    uint8_t MBEDTLS_PRIVATE(queue)[16];  /** The current partial block of data. */
-    size_t MBEDTLS_PRIVATE(queue_len);   /** The number of bytes stored in 'queue'. */
-}
-mbedtls_poly1305_context;
+typedef struct mbedtls_poly1305_context {
+    uint32_t MBEDTLS_PRIVATE(r)[4]; /** The value for 'r' (low 128 bits of the
+                                       key). */
+    uint32_t MBEDTLS_PRIVATE(s)[4]; /** The value for 's' (high 128 bits of the
+                                       key). */
+    uint32_t MBEDTLS_PRIVATE(acc)[5]; /** The accumulator number. */
+    uint8_t MBEDTLS_PRIVATE(queue)[16]; /** The current partial block of data.
+                                         */
+    size_t MBEDTLS_PRIVATE(queue_len); /** The number of bytes stored in
+                                          'queue'. */
+} mbedtls_poly1305_context;
 
-#else  /* MBEDTLS_POLY1305_ALT */
-#include "poly1305_alt.h"
+#else /* MBEDTLS_POLY1305_ALT */
+#    include "poly1305_alt.h"
 #endif /* MBEDTLS_POLY1305_ALT */
 
 /**
@@ -76,7 +78,7 @@
  * \param ctx       The Poly1305 context to initialize. This must
  *                  not be \c NULL.
  */
-void mbedtls_poly1305_init( mbedtls_poly1305_context *ctx );
+void mbedtls_poly1305_init(mbedtls_poly1305_context *ctx);
 
 /**
  * \brief           This function releases and clears the specified
@@ -86,7 +88,7 @@
  *                  case this function is a no-op. If it is not \c NULL, it must
  *                  point to an initialized Poly1305 context.
  */
-void mbedtls_poly1305_free( mbedtls_poly1305_context *ctx );
+void mbedtls_poly1305_free(mbedtls_poly1305_context *ctx);
 
 /**
  * \brief           This function sets the one-time authentication key.
@@ -101,8 +103,8 @@
  * \return          \c 0 on success.
  * \return          A negative error code on failure.
  */
-int mbedtls_poly1305_starts( mbedtls_poly1305_context *ctx,
-                             const unsigned char key[32] );
+int mbedtls_poly1305_starts(mbedtls_poly1305_context *ctx,
+                            const unsigned char key[32]);
 
 /**
  * \brief           This functions feeds an input buffer into an ongoing
@@ -122,9 +124,9 @@
  * \return          \c 0 on success.
  * \return          A negative error code on failure.
  */
-int mbedtls_poly1305_update( mbedtls_poly1305_context *ctx,
-                             const unsigned char *input,
-                             size_t ilen );
+int mbedtls_poly1305_update(mbedtls_poly1305_context *ctx,
+                            const unsigned char *input,
+                            size_t ilen);
 
 /**
  * \brief           This function generates the Poly1305 Message
@@ -138,8 +140,8 @@
  * \return          \c 0 on success.
  * \return          A negative error code on failure.
  */
-int mbedtls_poly1305_finish( mbedtls_poly1305_context *ctx,
-                             unsigned char mac[16] );
+int mbedtls_poly1305_finish(mbedtls_poly1305_context *ctx,
+                            unsigned char mac[16]);
 
 /**
  * \brief           This function calculates the Poly1305 MAC of the input
@@ -159,10 +161,10 @@
  * \return          \c 0 on success.
  * \return          A negative error code on failure.
  */
-int mbedtls_poly1305_mac( const unsigned char key[32],
-                          const unsigned char *input,
-                          size_t ilen,
-                          unsigned char mac[16] );
+int mbedtls_poly1305_mac(const unsigned char key[32],
+                         const unsigned char *input,
+                         size_t ilen,
+                         unsigned char mac[16]);
 
 #if defined(MBEDTLS_SELF_TEST)
 /**
@@ -171,7 +173,7 @@
  * \return          \c 0 on success.
  * \return          \c 1 on failure.
  */
-int mbedtls_poly1305_self_test( int verbose );
+int mbedtls_poly1305_self_test(int verbose);
 #endif /* MBEDTLS_SELF_TEST */
 
 #ifdef __cplusplus