message: Use the environment variable Xtensa core in micro unit tests instead of hard coding.
diff: @@ -26,8 +26,7 @@ declare -r MICRO_LOG_PATH=${TEST_TMPDIR}/$1
  declare -r MICRO_LOG_FILENAME=${MICRO_LOG_PATH}/logs.txt
  mkdir -p ${MICRO_LOG_PATH}
  -# TODO(kreeger): Enable the ability to pass a different core:
  -xt-run --xtensa-core=hifi3_bd5 $1 2>&1 | tee ${MICRO_LOG_FILENAME}
  +xt-run --xtensa-core=${XTENSA_CORE} $1 2>&1 | tee ${MICRO_LOG_FILENAME}
  if grep -q "$2" ${MICRO_LOG_FILENAME}
  then
  