Rename the _ret() functions

Signed-off-by: TRodziewicz <tomasz.rodziewicz@mobica.com>
diff --git a/library/md5.c b/library/md5.c
index 019b7f4..d7f8cee 100644
--- a/library/md5.c
+++ b/library/md5.c
@@ -88,7 +88,7 @@
 /*
  * MD5 context setup
  */
-int mbedtls_md5_starts_ret( mbedtls_md5_context *ctx )
+int mbedtls_md5_starts( mbedtls_md5_context *ctx )
 {
     ctx->total[0] = 0;
     ctx->total[1] = 0;
@@ -242,7 +242,7 @@
 /*
  * MD5 process buffer
  */
-int mbedtls_md5_update_ret( mbedtls_md5_context *ctx,
+int mbedtls_md5_update( mbedtls_md5_context *ctx,
                             const unsigned char *input,
                             size_t ilen )
 {
@@ -293,7 +293,7 @@
 /*
  * MD5 final digest
  */
-int mbedtls_md5_finish_ret( mbedtls_md5_context *ctx,
+int mbedtls_md5_finish( mbedtls_md5_context *ctx,
                             unsigned char output[16] )
 {
     int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
@@ -352,7 +352,7 @@
 /*
  * output = MD5( input buffer )
  */
-int mbedtls_md5_ret( const unsigned char *input,
+int mbedtls_md5( const unsigned char *input,
                      size_t ilen,
                      unsigned char output[16] )
 {
@@ -361,13 +361,13 @@
 
     mbedtls_md5_init( &ctx );
 
-    if( ( ret = mbedtls_md5_starts_ret( &ctx ) ) != 0 )
+    if( ( ret = mbedtls_md5_starts( &ctx ) ) != 0 )
         goto exit;
 
-    if( ( ret = mbedtls_md5_update_ret( &ctx, input, ilen ) ) != 0 )
+    if( ( ret = mbedtls_md5_update( &ctx, input, ilen ) ) != 0 )
         goto exit;
 
-    if( ( ret = mbedtls_md5_finish_ret( &ctx, output ) ) != 0 )
+    if( ( ret = mbedtls_md5_finish( &ctx, output ) ) != 0 )
         goto exit;
 
 exit:
@@ -427,7 +427,7 @@
         if( verbose != 0 )
             mbedtls_printf( "  MD5 test #%d: ", i + 1 );
 
-        ret = mbedtls_md5_ret( md5_test_buf[i], md5_test_buflen[i], md5sum );
+        ret = mbedtls_md5( md5_test_buf[i], md5_test_buflen[i], md5sum );
         if( ret != 0 )
             goto fail;