Unable to register ethos U backend

Author: BujSet

modules/executorch/CMakeLists.txt

@@ -86,6 +86,7 @@ else()
 set(EXECUTORCH_BUILD_CORTEX_M OFF)
 set(EXECUTORCH_BUILD_XNNPACK OFF)
 endif()
+set(EXECUTORCH_BUILD_EXTENSION_RUNNER_UTIL ON)
 
 # Suppress noisy ABI warnings from GCC that are not relevant when building
 # from source.

samples/modules/executorch/arm/hello_world/CMakeLists.txt

@@ -79,6 +79,8 @@ endif()
 target_link_libraries(app PRIVATE 
  libexecutorch
  ${EXECUTORCH_OPS_LIB}
+ executorch_delegate_ethos_u
+ portable_kernels
 )
 
 # Add include directory for generated headers