Implement hipHostFree on HCC path

src/hip_hcc.cpp

@@ -2607,7 +2607,7 @@ hipError_t hipFree(void* ptr)
 }
 
 
-hipError_t hipFreeHost(void* ptr)
+hipError_t hipHostFree(void* ptr)
 {
     // TODO - ensure this pointer was created by hipMallocHost and not hipMalloc
     std::call_once(hip_initialized, ihipInit);
@@ -2621,6 +2621,13 @@ hipError_t hipFreeHost(void* ptr)
 };
 
 
+// TODO - deprecated function.
+hipError_t hipFreeHost(void* ptr)
+{
+    hipHostFree(ptr);
+}
+
+
 
 /**
  * @warning HCC returns 0 in *canAccessPeer ; Need to update this function when RT supports P2P