[libomptarget] Enable the device allocator for AMDGPU

This patch adds support for the device memory type, this is currently equivalent
to the default type so it should be treated as the same.

Reviewed By: JonChesterfield

Differential Revision: https://reviews.llvm.org/D133128

openmp/libomptarget/plugins/amdgpu/src/rtl.cpp

@@ -2623,6 +2623,7 @@ void *__tgt_rtl_data_alloc(int DeviceId, int64_t Size, void *, int32_t Kind) {
   hsa_amd_memory_pool_t MemoryPool;
   switch (Kind) {
   case TARGET_ALLOC_DEFAULT:
+  case TARGET_ALLOC_DEVICE:
     // GPU memory
     MemoryPool = DeviceInfo().getDeviceMemoryPool(DeviceId);
     break;

openmp/libomptarget/test/api/omp_device_memory.c

@@ -1,5 +1,4 @@
-// RUN: %libomptarget-compile-run-and-check-nvptx64-nvidia-cuda
-// REQUIRES: nvptx64-nvidia-cuda
+// RUN: %libomptarget-compile-run-and-check-generic
 
 #include <omp.h>
 #include <stdio.h>