wsl/hsakmt: add VendorPacket to VersionCapInfo

Provide the query for hsa-runtime to decide whether dispatch
vendor packet to wsl-thunk

Signed-off-by: Longlong Yao <Longlong.Yao@amd.com>
Reviewed-by: Flora Cui <flora.cui@amd.com>
Part-of: <http://10.67.69.192/wsl/libhsakmt/-/merge_requests/30>

globals.cpp

@@ -45,5 +45,7 @@ bool is_svm_api_supported;
 int zfb_support;
 /* handle vendor specific packet */
 int vendor_packet_support;
+/* enable vendor packet in hsa-runtime*/
+int enable_vendor_packet;
 
 size_t max_single_alloc_size = 0;