add arguments to support customized working dir

cros_enter_sdk.sh

@@ -1,9 +1,12 @@
 #!/bin/bash
+#
+# Create working directory 
+#
+_working_dir_name=$1
+_working_dir_name=${_working_dir_name::-1}
+_working_full_path="${_parentdir}/${_working_dir_name}"
+cd ${_working_full_path}
+echo "GOTO: ${_working_full_path}" 
 
-SCRIPT_DIR=${HOME}/chrome/daily_routine_repo
-WORKING_DIR=${HOME}/chrome/dailyBuildToT
-# WORKING_DIR=/home/casperchang/chrome/ToT
-
-cd ${WORKING_DIR}
 echo 'cros_sdk --no-ns-pid'
 cros_sdk --no-ns-pid