SWDEV-294594 - Fix hipPointerGetAttributes test on NV

Replace return value of hipPointerGetAttributes() on NV from
hipErrorUnknown to hipErrorInvalidValue if memory has been freed.

Change-Id: I3fe6dbc35a7a14aa9109df297b7885df83d28149

hipnv/include/hip/nvidia_detail/nvidia_hip_runtime_api.h

@@ -1699,7 +1699,7 @@ inline static hipError_t hipPointerGetAttributes(hipPointerAttribute_t* attribut
                 attributes->memoryType = hipMemoryTypeHost;
                 break;
             default:
-                return hipErrorUnknown;
+                return hipErrorInvalidValue;
         }
         attributes->device = cPA.device;
         attributes->devicePointer = cPA.devicePointer;