platform: msm_shared: Add lock menu support

As a part of verified boot, it requires user to confirm whether
wipe user data when trying to lock the device. So add lock menu
support.

1. Add lock menu
2. Update the unlock warning message base on the newest requirements

Change-Id: I5d8764c27cbf5992d064c1ad4e7646ec134d3d52
3 files changed