Code fixes for MSIM Telephony

TODO: Fixes up msim statusbar layout

Revert "Use java.util.Objects instead on internal API"

This reverts commit 0886c6348bd95d87c5f2e62228d82f12232de848.

Change-Id: I6e9f351bf84cd569812a0d5014a3fab4c8444617

Keyguard

Change-Id: Ibc9cf20790b659c02a213611b3d1f6fcaa500dbc