[SYCL] Use urGetDeviceInfo to check bfloat16 native conversion extension (#18023)

As agreement in #16729 , In general we
discourage the use of the extension strings as it is a remnant of the
OpenCL days. Instead we want to use urDeviceGetInfo when possible. This
is a follow-up pr to replace checking OpenCL extension string with
urGetDeviceInfo for native bfloat16 conversion extension.

---------

Signed-off-by: jinge90 <[email protected]>
Co-authored-by: Steffen Larsen <[email protected]>

Author: jinge90

sycl/source/detail/program_manager/program_manager.cpp

@@ -641,12 +641,21 @@ bool ProgramManager::isSpecialDeviceImageShouldBeUsed(
     // TODO: re-design the encode of the devicelib metadata if we must support
     // more devicelib images in this way.
     enum { DEVICELIB_FALLBACK = 0, DEVICELIB_NATIVE };
+    ur_bool_t NativeBF16Supported = false;
     const std::shared_ptr<detail::device_impl> &DeviceImpl =
         detail::getSyclObjImpl(Dev);
-    std::string NativeBF16ExtName = "cl_intel_bfloat16_conversions";
-    bool NativeBF16Supported = (DeviceImpl->has_extension(NativeBF16ExtName));
-    return NativeBF16Supported ==
-           (Bfloat16DeviceLibVersion == DEVICELIB_NATIVE);
+    ur_result_t CallSuccessful =
+        DeviceImpl->getAdapter()->call_nocheck<UrApiKind::urDeviceGetInfo>(
+            DeviceImpl->getHandleRef(),
+            UR_DEVICE_INFO_BFLOAT16_CONVERSIONS_NATIVE, sizeof(ur_bool_t),
+            &NativeBF16Supported, nullptr);
+    if (CallSuccessful != UR_RESULT_SUCCESS) {
+      // If backend query is not successful, we will use fallback bfloat16
+      // device library for safety.
+      return Bfloat16DeviceLibVersion == DEVICELIB_FALLBACK;
+    } else
+      return NativeBF16Supported ==
+             (Bfloat16DeviceLibVersion == DEVICELIB_NATIVE);
   }
 
   return false;