Add ptl_u architecture to arch_parser.c (#4689)

Author: anmyachev

third_party/intel/backend/arch_parser.c

@@ -47,6 +47,9 @@ extern "C" EXPORT_FUNC const char *parse_device_arch(uint64_t dev_arch) {
   case sycl::ext::oneapi::experimental::architecture::intel_gpu_ptl_h:
     arch = "ptl_h";
     break;
+  case sycl::ext::oneapi::experimental::architecture::intel_gpu_ptl_u:
+    arch = "ptl_u";
+    break;
 #endif
   default:
     std::cerr << "sycl_arch not recognized: " << (uint64_t)sycl_arch