Merge pull request #24 from hsinyi/bugzilla/842492/followup

Followup: Bug 842492 - add 'gsm clear' console command. r=vicamo
Bug 860682 - Support getting remaining PIN retries
Merge pull request #28 from EdgarChen/bug_860682

Bug 860682 - Support getting remaining PIN retries. r=vicamo
Bug 835255 - Add OPL file and enable PNN file. r=vicamo
Merge pull request #27 from kk1fff/b/835255/reenable-pnn-test

Bug 835255 - Add OPL file and enable PNN file.
external/qemu: Support for Signal Strength in emulator

Change-Id: Ia62ef338b64739d50eeb55d33d15227a0047d8d0