Fixed HIP for C runtime

1. fixed constant memory test
2. added runtime gcc/g++ test
3. added fix for runtime with gcc/g++

Change-Id: Ie14dad6633411b188bdeea044e140b6d5beabe16

hipamd/tests/src/gcc/hipMalloc.c

@@ -0,0 +1,8 @@
+#include<hip/hip_runtime_api.h>
+#include<stdio.h>
+
+int main()
+{
+  int *Ad;
+  hipMalloc((void**)&Ad, 1024);
+}