mh_sha256: fix undeclared variable in perf app

Signed-off-by: Marcel Cornu <[email protected]>

Author: mdcornu

mh_sha256/mh_sha256_perf.c

@@ -185,9 +185,10 @@ main(int argc, char *argv[])
         free(buff);
         free(update_ctx_test);
         free(update_ctx_base);
+
+        return fail;
 #else
         printf("Not Executed\n");
         return 0;
 #endif /* FIPS_MODE */
-        return fail;
 }