Internalise functions flagged as internal

Signed-off-by: Thomas Daubney <thomas.daubney@arm.com>
diff --git a/tf-psa-crypto/drivers/builtin/src/md5.c b/tf-psa-crypto/drivers/builtin/src/md5.c
index 98b8ee4..519be43 100644
--- a/tf-psa-crypto/drivers/builtin/src/md5.c
+++ b/tf-psa-crypto/drivers/builtin/src/md5.c
@@ -58,7 +58,7 @@
     return 0;
 }
 
-int mbedtls_internal_md5_process(mbedtls_md5_context *ctx,
+static int mbedtls_internal_md5_process(mbedtls_md5_context *ctx,
                                  const unsigned char data[64])
 {
     struct {
diff --git a/tf-psa-crypto/drivers/builtin/src/ripemd160.c b/tf-psa-crypto/drivers/builtin/src/ripemd160.c
index 835df95..e1275fb 100644
--- a/tf-psa-crypto/drivers/builtin/src/ripemd160.c
+++ b/tf-psa-crypto/drivers/builtin/src/ripemd160.c
@@ -62,7 +62,7 @@
 /*
  * Process one block
  */
-int mbedtls_internal_ripemd160_process(mbedtls_ripemd160_context *ctx,
+static int mbedtls_internal_ripemd160_process(mbedtls_ripemd160_context *ctx,
                                        const unsigned char data[64])
 {
     struct {
diff --git a/tf-psa-crypto/drivers/builtin/src/sha1.c b/tf-psa-crypto/drivers/builtin/src/sha1.c
index b13381d..6c252f6 100644
--- a/tf-psa-crypto/drivers/builtin/src/sha1.c
+++ b/tf-psa-crypto/drivers/builtin/src/sha1.c
@@ -59,7 +59,7 @@
     return 0;
 }
 
-int mbedtls_internal_sha1_process(mbedtls_sha1_context *ctx,
+static int mbedtls_internal_sha1_process(mbedtls_sha1_context *ctx,
                                   const unsigned char data[64])
 {
     struct {
diff --git a/tf-psa-crypto/drivers/builtin/src/sha256.c b/tf-psa-crypto/drivers/builtin/src/sha256.c
index 1bfb701..6566d5f 100644
--- a/tf-psa-crypto/drivers/builtin/src/sha256.c
+++ b/tf-psa-crypto/drivers/builtin/src/sha256.c
@@ -617,7 +617,7 @@
     }
 }
 
-int mbedtls_internal_sha256_process(mbedtls_sha256_context *ctx,
+static int mbedtls_internal_sha256_process(mbedtls_sha256_context *ctx,
                                     const unsigned char data[SHA256_BLOCK_SIZE])
 {
     if (mbedtls_a64_crypto_sha256_has_support()) {
diff --git a/tf-psa-crypto/drivers/builtin/src/sha512.c b/tf-psa-crypto/drivers/builtin/src/sha512.c
index 52b4f62..25ac70b 100644
--- a/tf-psa-crypto/drivers/builtin/src/sha512.c
+++ b/tf-psa-crypto/drivers/builtin/src/sha512.c
@@ -737,7 +737,7 @@
     }
 }
 
-int mbedtls_internal_sha512_process(mbedtls_sha512_context *ctx,
+static int mbedtls_internal_sha512_process(mbedtls_sha512_context *ctx,
                                     const unsigned char data[SHA512_BLOCK_SIZE])
 {
     if (mbedtls_a64_crypto_sha512_has_support()) {