DO NOT MERGE - Fix Airplane Mode + reboot interaction for Wifi

This change fixes two problems - first, if you rebooted phone after
turning on Airplane mode, Wifi controller goes to ScanOnly mode which
may end up in Wifi radio transmissions. Secondly, because of this
incorrect state, the state machine doesn't turn on Wifi once Airplane
mode is turned off.

bug: 11409692
Change-Id: I55b4a5352a72a9c783e1b9891dd5363434585fb0