[SYCL] Fix global memory reporting for Arc (#10013)

3c35b1b dropped this previous fix by
mistake: #8624

Author: ph0b

sycl/plugins/unified_runtime/ur/adapters/level_zero/ur_level_zero_device.cpp

@@ -245,10 +245,19 @@ UR_APIEXPORT ur_result_t UR_APICALL urDeviceGetInfo(
     return ReturnValue(uint64_t{Device->ZeDeviceProperties->maxMemAllocSize});
   case UR_DEVICE_INFO_GLOBAL_MEM_SIZE: {
     uint64_t GlobalMemSize = 0;
+    // Support to read physicalSize depends on kernel,
+    // so fallback into reading totalSize if physicalSize
+    // is not available.
     for (const auto &ZeDeviceMemoryExtProperty :
          Device->ZeDeviceMemoryProperties->second) {
       GlobalMemSize += ZeDeviceMemoryExtProperty.physicalSize;
     }
+    if (GlobalMemSize == 0) {
+      for (const auto &ZeDeviceMemoryProperty :
+           Device->ZeDeviceMemoryProperties->first) {
+        GlobalMemSize += ZeDeviceMemoryProperty.totalSize;
+      }
+    }
     return ReturnValue(uint64_t{GlobalMemSize});
   }
   case UR_DEVICE_INFO_LOCAL_MEM_SIZE: