Frameworks: Add reboot menu - prepare for Slims Global menu - misc changes

Adding advanced reboot menu like it was on kk4.4
Adding advanced reboot secure option
Move reboot into safe mode from longpress power to longpress reboot
Enable for now per default Airplane mode and sound and reboot till we have imported our SlimActions class to make in configurable

misc changes and adaptions to lp

Change-Id: Idd4f56d985ac51ade5f8deb2597d8f1dda22088a
Merge remote-tracking branch 'slim/lp5.0' into lp50s-test