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_context.cpp

@@ -63,7 +63,11 @@ bool init() {
     if (context && CL_SUCCESS != context->create(nullptr)) {
       context->release();
     } else {
-      g_devices.push_back(new Device(context, i));
+      auto device = new Device(context, i);
+      if ((device == nullptr) || !device->Create()) {
+        return false;
+      }
+      g_devices.push_back(device);
     }
   }