Merge pull request #122 from kaleb-himes/no-md5-with-hc128

fix for test failure with --enable-hc128 --disable-md5

wolfssl/internal.h

@@ -331,7 +331,9 @@ typedef byte word24[3];
     #endif
 
     #if !defined(NO_HC128) && !defined(NO_RSA) && !defined(NO_TLS)
-        #define BUILD_TLS_RSA_WITH_HC_128_MD5
+        #ifndef NO_MD5
+            #define BUILD_TLS_RSA_WITH_HC_128_MD5
+        #endif
         #if !defined(NO_SHA)
             #define BUILD_TLS_RSA_WITH_HC_128_SHA
         #endif