Support numa policy set by user

Add hipHostMallocNumaUser flag to hipHostMalloc() in order to support
numa policy set by user.

Change-Id: I6d70ed539a5f97f27187f2242b68849c0e27e4d6

rocclr/hip_memory.cpp

@@ -257,6 +257,10 @@ hipError_t hipHostMalloc(void** ptr, size_t sizeBytes, unsigned int flags) {
     ihipFlags |= CL_MEM_SVM_ATOMICS;
   }
 
+  if (flags & hipHostMallocNumaUser) {
+    ihipFlags |= CL_MEM_FOLLOW_USER_NUMA_POLICY;
+  }
+
   HIP_RETURN(ihipMalloc(ptr, sizeBytes, ihipFlags), *ptr);
 }