[Feature][ZXW-209]add at+gpioset,can control GPIO direction and value

Only Configure:No
Affected branch:master
Affected module:at-factory
Is it affected on both ZXIC and MTK:only ZXIC
Self-test:Yes
Doc Update:NO

Change-Id: Ifb547ff5d5b08b716d1acf8858e995abaf3342f8
1 file changed