Fix dongle cannot be found issue.

In some conditions, the dongle will enter the 'station' mode even its 'hotspot' mode attritube is set to true.

Signed-off-by: Jianmin Zhou <toandrew@infthink.com>
Add resetcurrenttime and some logs.
Merge pull request #23 from toandrew/matchstick-b2g2.1

Fix dongle cannot be found issue.
Merge pull request #22 from dlxswangli/branch-resettime

Add resetcurrenttime and some logs.