Fix test functions and data after moving hexify/unhexify out

- Separate string and hex parameter as unhexify is moved out of the function. It's input should only be hex.
- Fix test mbedtls_ccm_encrypt_and_tag that grows input message buffer with tag
- Add missing expected length parameter in ECP TLS tests
- Add deleted TEST_ASSERT and mbedtls calls that got removed in script based code generation
diff --git a/tests/suites/test_suite_ccm.function b/tests/suites/test_suite_ccm.function
index c845f44..5dbc837 100644
--- a/tests/suites/test_suite_ccm.function
+++ b/tests/suites/test_suite_ccm.function
@@ -125,9 +125,12 @@
 {
     mbedtls_ccm_context ctx;
     size_t tag_len;
+    uint8_t * msg_n_tag = (uint8_t *)malloc( result_len + 2 );
 
     mbedtls_ccm_init( &ctx );
 
+    memset( msg_n_tag, 0, result_len + 2 );
+    memcpy( msg_n_tag, msg, msg_len );
 
     tag_len = result_len - msg_len;
 
@@ -135,15 +138,16 @@
 
     /* Test with input == output */
     TEST_ASSERT( mbedtls_ccm_encrypt_and_tag( &ctx, msg_len, iv, iv_len, add, add_len,
-                 msg, msg, msg + msg_len, tag_len ) == 0 );
+                 msg_n_tag, msg_n_tag, msg_n_tag + msg_len, tag_len ) == 0 );
 
-    TEST_ASSERT( memcmp( msg, result, result_len ) == 0 );
+    TEST_ASSERT( memcmp( msg_n_tag, result, result_len ) == 0 );
 
     /* Check we didn't write past the end */
-    TEST_ASSERT( msg[result_len] == 0 && msg[result_len + 1] == 0 );
+    TEST_ASSERT( msg_n_tag[result_len] == 0 && msg_n_tag[result_len + 1] == 0 );
 
 exit:
     mbedtls_ccm_free( &ctx );
+    free( msg_n_tag );
 }
 /* END_CASE */
 
@@ -152,7 +156,8 @@
                                uint8_t * msg, uint32_t msg_len, uint8_t * iv,
                                uint32_t iv_len, uint8_t * add,
                                uint32_t add_len, int tag_len,
-                               uint8_t * result, uint32_t result_len )
+                               char * result, uint8_t * hex_msg,
+                               uint32_t hex_msg_len )
 {
     unsigned char tag[16];
     mbedtls_ccm_context ctx;
@@ -165,10 +170,9 @@
     msg_len -= tag_len;
     memcpy( tag, msg + msg_len, tag_len );
 
-    if( strcmp( "FAIL", (char *)result ) == 0 )
+    if( strcmp( "FAIL", result ) == 0 )
     {
         ret = MBEDTLS_ERR_CCM_AUTH_FAILED;
-        result_len = -1;
     }
     else
     {
@@ -183,7 +187,7 @@
 
     if( ret == 0 )
     {
-        TEST_ASSERT( memcmp( msg, result, result_len ) == 0 );
+        TEST_ASSERT( memcmp( msg, hex_msg, hex_msg_len ) == 0 );
     }
     else
     {