SWDEV-425460, SWDEV-426132, SWDEV-426133, SWDEV-426137 - Revert "SWDEV-399623 - [ABI Break] Remove 'memoryType' from hipPointerAttribute_t"

This reverts commit 99c48bfc6d.

Reason for revert: This causes build failure in AMG, UCC & UCX

Change-Id: I9198de12f04fa1790cfbd8b65955723e05700c8a

include/hip/hip_runtime_api.h

@@ -186,7 +186,11 @@ typedef enum hipMemoryType {
  * Pointer attributes
  */
 typedef struct hipPointerAttribute_t {
-    enum hipMemoryType type;
+  union {
+      // Deprecated, use instead type
+      enum hipMemoryType memoryType;
+      enum hipMemoryType type;
+    };
     int device;
     void* devicePointer;
     void* hostPointer;