SN_Writer_Tool_exe_v1.1752.0

1. Add kernel com port filter for MT6771 in SN_Setup.ini file. 2. Change "auth file" loading flow for security project, don't need re-select auth file after restart tool. 3. Update meta relate dll/head/lib files from META_DLL_Customer_exe_v9.1724.20.zip 4. Change "get available modem meta handle" api, imput extra peramter to avoid multi-thread crash issue. extra peramter to avoid multi-thread crash issue.