[Feature][ZXW-228]add at cmd for status&net led

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

Change-Id: I9cbf234dfca499039871dfd3d8c813e7b328947b
4 files changed