tests: suites: Remove `hex` in name of variables of type data_t

Remove `hex` in name of variables of type data_t to reserve it
for variables of type char* that are the hexadecimal
representation of a data buffer.

Signed-off-by: Ronald Cron <ronald.cron@arm.com>
diff --git a/tests/suites/test_suite_mdx.function b/tests/suites/test_suite_mdx.function
index ed2ae58..aa35c58 100644
--- a/tests/suites/test_suite_mdx.function
+++ b/tests/suites/test_suite_mdx.function
@@ -6,7 +6,7 @@
 /* END_HEADER */
 
 /* BEGIN_CASE depends_on:MBEDTLS_MD2_C */
-void md2_text( char * text_src_string, data_t * hex_hash_string )
+void md2_text( char * text_src_string, data_t * hash )
 {
     int ret;
     unsigned char src_str[100];
@@ -20,14 +20,13 @@
     ret = mbedtls_md2_ret( src_str, strlen( (char *) src_str ), output );
     TEST_ASSERT( ret == 0 ) ;
 
-    TEST_ASSERT( mbedtls_test_hexcmp( output, hex_hash_string->x,
-                                      sizeof  output,
-                                      hex_hash_string->len ) == 0 );
+    TEST_ASSERT( mbedtls_test_hexcmp( output, hash->x,
+                                      sizeof  output, hash->len ) == 0 );
 }
 /* END_CASE */
 
 /* BEGIN_CASE depends_on:MBEDTLS_MD4_C */
-void md4_text( char * text_src_string, data_t * hex_hash_string )
+void md4_text( char * text_src_string, data_t * hash )
 {
     int ret;
     unsigned char src_str[100];
@@ -41,14 +40,13 @@
     ret = mbedtls_md4_ret( src_str, strlen( (char *) src_str ), output );
     TEST_ASSERT( ret == 0 );
 
-    TEST_ASSERT( mbedtls_test_hexcmp( output, hex_hash_string->x,
-                                      sizeof  output,
-                                      hex_hash_string->len ) == 0 );
+    TEST_ASSERT( mbedtls_test_hexcmp( output, hash->x,
+                                      sizeof  output, hash->len ) == 0 );
 }
 /* END_CASE */
 
 /* BEGIN_CASE depends_on:MBEDTLS_MD5_C */
-void md5_text( char * text_src_string, data_t * hex_hash_string )
+void md5_text( char * text_src_string, data_t * hash )
 {
     int ret;
     unsigned char src_str[100];
@@ -62,14 +60,13 @@
     ret = mbedtls_md5_ret( src_str, strlen( (char *) src_str ), output );
     TEST_ASSERT( ret == 0 );
 
-    TEST_ASSERT( mbedtls_test_hexcmp( output, hex_hash_string->x,
-                                      sizeof  output,
-                                      hex_hash_string->len ) == 0 );
+    TEST_ASSERT( mbedtls_test_hexcmp( output, hash->x,
+                                      sizeof  output, hash->len ) == 0 );
 }
 /* END_CASE */
 
 /* BEGIN_CASE depends_on:MBEDTLS_RIPEMD160_C */
-void ripemd160_text( char * text_src_string, data_t * hex_hash_string )
+void ripemd160_text( char * text_src_string, data_t * hash )
 {
     int ret;
     unsigned char src_str[100];
@@ -83,9 +80,8 @@
     ret = mbedtls_ripemd160_ret( src_str, strlen( (char *) src_str ), output );
     TEST_ASSERT( ret == 0 );
 
-    TEST_ASSERT( mbedtls_test_hexcmp( output, hex_hash_string->x,
-                                      sizeof output,
-                                      hex_hash_string->len ) == 0 );
+    TEST_ASSERT( mbedtls_test_hexcmp( output, hash->x,
+                                      sizeof output, hash->len ) == 0 );
 }
 /* END_CASE */