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/timing.h b/include/mbedtls/timing.h
index 25db1c6..5549209 100644
--- a/include/mbedtls/timing.h
+++ b/include/mbedtls/timing.h
@@ -38,27 +38,26 @@
 /**
  * \brief          timer structure
  */
-struct mbedtls_timing_hr_time
-{
+struct mbedtls_timing_hr_time {
     unsigned char MBEDTLS_PRIVATE(opaque)[32];
 };
 
 /**
  * \brief          Context for mbedtls_timing_set/get_delay()
  */
-typedef struct mbedtls_timing_delay_context
-{
-    struct mbedtls_timing_hr_time   MBEDTLS_PRIVATE(timer);
-    uint32_t                        MBEDTLS_PRIVATE(int_ms);
-    uint32_t                        MBEDTLS_PRIVATE(fin_ms);
+typedef struct mbedtls_timing_delay_context {
+    struct mbedtls_timing_hr_time MBEDTLS_PRIVATE(timer);
+    uint32_t MBEDTLS_PRIVATE(int_ms);
+    uint32_t MBEDTLS_PRIVATE(fin_ms);
 } mbedtls_timing_delay_context;
 
-#else  /* MBEDTLS_TIMING_ALT */
-#include "timing_alt.h"
+#else /* MBEDTLS_TIMING_ALT */
+#    include "timing_alt.h"
 #endif /* MBEDTLS_TIMING_ALT */
 
 /* Internal use */
-unsigned long mbedtls_timing_get_timer( struct mbedtls_timing_hr_time *val, int reset );
+unsigned long mbedtls_timing_get_timer(struct mbedtls_timing_hr_time *val,
+                                       int reset);
 
 /**
  * \brief          Set a pair of delays to watch
@@ -74,7 +73,7 @@
  * \note           To set a single delay, either use \c mbedtls_timing_set_timer
  *                 directly or use this function with int_ms == fin_ms.
  */
-void mbedtls_timing_set_delay( void *data, uint32_t int_ms, uint32_t fin_ms );
+void mbedtls_timing_set_delay(void *data, uint32_t int_ms, uint32_t fin_ms);
 
 /**
  * \brief          Get the status of delays
@@ -88,7 +87,7 @@
  *                  1 if only the intermediate delay is passed,
  *                  2 if the final delay is passed.
  */
-int mbedtls_timing_get_delay( void *data );
+int mbedtls_timing_get_delay(void *data);
 
 #ifdef __cplusplus
 }