[CI] Use LLVM 17 for tests on ci_arm

Changes the config script to build TVM with LLVM 17.

Change-Id: Id7ff105881272f8bcd6e1fc9b1bfefa49b84dc07

Author: lhutton1

tests/scripts/task_config_build_arm.sh

@@ -28,7 +28,7 @@ echo set\(USE_RPC ON\) >> config.cmake
 echo set\(USE_MICRO ON\) >> config.cmake
 echo set\(USE_MICRO_STANDALONE_RUNTIME ON\) >> config.cmake
 echo set\(USE_PROFILER ON\) >> config.cmake
-echo -e 'find_program(LLVM_CONFIG "llvm-config")\nif (LLVM_CONFIG) \n\tset(USE_LLVM llvm-config) \nelse() \n\tset(USE_LLVM llvm-config-16)\nendif()' >> config.cmake
+echo set\(USE_LLVM llvm-config-17\) >> config.cmake
 echo set\(CMAKE_CXX_FLAGS -Werror\) >> config.cmake
 echo set\(USE_VTA_FSIM ON\) >> config.cmake
 echo set\(USE_ARM_COMPUTE_LIB ON\) >> config.cmake