SWDEV-311271 - Initial mempool implementation

HIP_MEM_POOL_SUPPORT controls memory pool support in runtime.
Currently it's disabled by default. The initial change doesn't
include: IPC, MGPU, virtual memory alloc, suballoc, defragmentation,
internal dependencies.

Change-Id: Ibed8528ebec698b045ebb247e49c0ecd6e587ed7


[ROCm/clr commit: 539d264eb0]

projects/clr/hipamd/src/hip_device_runtime.cpp

@@ -329,6 +329,9 @@ hipError_t hipDeviceGetAttribute(int* pi, hipDeviceAttribute_t attr, int device)
   case hipDeviceAttributeFineGrainSupport:
     *pi = static_cast<int>(g_devices[device]->devices()[0]->isFineGrainSupported());
     break;
+  case hipDeviceAttributeMemoryPoolsSupported:
+    *pi = HIP_MEM_POOL_SUPPORT;
+    break;
   default:
     HIP_RETURN(hipErrorInvalidValue);
   }