[SYCLomatic] Add the migration of the device property unifiedAddressing. (#2722)

Signed-off-by: Chen, Sheng S <sheng.s.chen@intel.com>

Author: ShengchenJ

clang/lib/DPCT/RulesLang/MapNamesLang.cpp

@@ -183,6 +183,7 @@ const MapNamesLang::MapTy DeviceInfoVarRule::PropNamesMap{
     {"maxTexture2D", "image2d_max"},
     {"maxTexture3D", "image3d_max"},
     {"regsPerBlock", "max_register_size_per_work_group"},
+    {"unifiedAddressing", "host_unified_memory"},
     // ...
 };
 

clang/test/dpct/device001.cu

@@ -35,7 +35,8 @@ int main(int argc, char **argv) {
 
   // CHECK: dpct::device_info deviceProp;
   cudaDeviceProp deviceProp;
-
+  // CHECK: deviceProp.get_host_unified_memory();
+  deviceProp.unifiedAddressing;
   // CHECK: std::array<unsigned char, 16> uuid = deviceProp.get_uuid();
   cudaUUID_t uuid = deviceProp.uuid;
   // CHECK: deviceProp.set_uuid(uuid);