keyguard: Fix issues with left aligned lock icon

 * fix massive requestLayout spam not only while on lockscreen,
   but even after unlocking

requestLayout() improperly called by com.android.systemui.statusbar.phone.LockIcon{941701b VFED..C.. ......ID 0,55-116,171 #7f0a02c8 app:id/lock_icon} during layout: running second layout pass

 * while we're at it, also make sure to center align the lock
   icon while showing bouncer

Change-Id: Iafa4c7ed27f68d536e53c02ee7830b8651ce94ea
Signed-off-by: Ayan Mukherjee <mukherjeeayan725@gmail.com>
1 file changed