Update CODEOWNERS for ROCR-Runtime (#2790)

.github/CODEOWNERS

@@ -43,6 +43,7 @@
 /projects/rocr-runtime/libhsakmt                                      @kentrussell @dayatsin-amd @cfreeamd
 /projects/rocr-runtime/libhsakmt/tests/kfdtest                        @kentrussell @xiaogang-chen-amd
 /projects/rocr-runtime/rocrtst                                        @shwetagkhatri @cfreeamd
+/projects/rocr-runtime/runtime/hsa-runtime/core/runtime/trap_handler/*.s	@lancesix @dayatsin-amd @cfreeamd @shwetagkhatri
 /projects/rocr-runtime/runtime/hsa-runtime/core/driver/xdna           @atgutier @ypapadop-amd @dayatsin-amd @cfreeamd
 /projects/rocr-runtime/runtime/hsa-runtime/core/driver/virtio         @dayatsin-amd @cfreeamd
 /projects/rocr-runtime/runtime/hsa-runtime/loader                     @dayatsin-amd @kzhuravl @cfreeamd