Put UR entry points in ur::level_zero

Fixes missing symbol at linking for static build of L0 adapter.

Author: Hugh Delaney

source/adapters/level_zero/tensor_map.cpp

@@ -10,19 +10,23 @@
 
 #include <ur_api.h>
 
-UR_APIEXPORT ur_result_t UR_APICALL urTensorMapEncodeIm2ColExp(
+namespace ur::level_zero {
+
+ur_result_t urTensorMapEncodeIm2ColExp(
     ur_device_handle_t, ur_exp_tensor_map_data_type_flags_t, uint32_t, void *,
     const uint64_t *, const uint64_t *, const int *, const int *, uint32_t,
     uint32_t, const uint32_t *, ur_exp_tensor_map_interleave_flags_t,
     ur_exp_tensor_map_swizzle_flags_t, ur_exp_tensor_map_l2_promotion_flags_t,
     ur_exp_tensor_map_oob_fill_flags_t, ur_exp_tensor_map_handle_t *) {
   return UR_RESULT_ERROR_UNSUPPORTED_FEATURE;
 }
-UR_APIEXPORT ur_result_t UR_APICALL urTensorMapEncodeTiledExp(
+
+ur_result_t urTensorMapEncodeTiledExp(
     ur_device_handle_t, ur_exp_tensor_map_data_type_flags_t, uint32_t, void *,
     const uint64_t *, const uint64_t *, const uint32_t *, const uint32_t *,
     ur_exp_tensor_map_interleave_flags_t, ur_exp_tensor_map_swizzle_flags_t,
     ur_exp_tensor_map_l2_promotion_flags_t, ur_exp_tensor_map_oob_fill_flags_t,
     ur_exp_tensor_map_handle_t *) {
   return UR_RESULT_ERROR_UNSUPPORTED_FEATURE;
 }
+} // namespace ur::level_zero