rocr: Add hsa_amd_portable_export_dmabuf_v2

The original version of hsa_amd_portable_export_dmabuf() did not
consider the conditions under which a dmabuf could be shared.
In the new version (hsa_amd_portable_export_dmabuf_v2()), the caller
can specify the flag HSA_AMD_DMABUF_MAPPING_TYPE_PCIE, which means they
want to share the dmabuf over PCIe. In that case, the new code will check
that if it is a PCIe GPU and it is not in a XGMI Hive then if
large-BAR is not supported, we will return an error.


[ROCm/ROCR-Runtime commit: 3a9d14bb66]

projects/rocr-runtime/runtime/hsa-runtime/core/common/hsa_table_interface.cpp

@@ -1246,6 +1246,12 @@ hsa_status_t HSA_API hsa_amd_portable_export_dmabuf(const void* ptr, size_t size
   return amdExtTable->hsa_amd_portable_export_dmabuf_fn(ptr, size, dmabuf, offset);
 }
 
+// Mirrors Amd Extension Apis
+hsa_status_t HSA_API hsa_amd_portable_export_dmabuf_v2(const void* ptr, size_t size, int* dmabuf,
+                                                    uint64_t* offset, uint64_t flags) {
+  return amdExtTable->hsa_amd_portable_export_dmabuf_v2_fn(ptr, size, dmabuf, offset, flags);
+}
+
 // Mirrors Amd Extension Apis
 hsa_status_t HSA_API hsa_amd_portable_close_dmabuf(int dmabuf) {
   return amdExtTable->hsa_amd_portable_close_dmabuf_fn(dmabuf);