Code review feedback. Error out on len = 0 as well.

Author: kareem-wolfssl

wolfcrypt/src/port/nxp/se050_port.c

@@ -269,7 +269,7 @@ int se050_hash_update(SE050_HASH_Context* se050Ctx, const byte* data, word32 len
     byte* tmp = NULL;
     word32 usedSz = 0;
 
-    if (se050Ctx == NULL || (len > 0 && data == NULL) ||
+    if (se050Ctx == NULL || (len > 0 && data == NULL) || (len == 0) ||
         !WC_SAFE_SUM_WORD32(se050Ctx->used, len, usedSz)) {
         return BAD_FUNC_ARG;
     }

wolfcrypt/src/port/ti/ti-hash.c

@@ -77,7 +77,7 @@ static int hashUpdate(wolfssl_TI_Hash *hash, const byte* data, word32 len)
     void *p;
     word32 usedSz = 0;
 
-    if ((hash== NULL) || (data == NULL) ||
+    if ((hash == NULL) || (data == NULL) || (len == 0) ||
         !WC_SAFE_SUM_WORD32(hash->used, len, usedSz))
         return BAD_FUNC_ARG;