[CS] Update NavBar to call KeyguardStateController not CentralSurfaces.

Bug: 277764509
Test: turn on 3 button nav & receive incoming call while device is
locked -> try tapping on home button and verify touch is blocked & log
statement is logged
Test: turn on 3 button nav & receive incoming call while device is
*un*locked -> verify home button tap works, touch not blocked
Test: atest NavigationBarTest

Change-Id: I1f2a3ef07509e1c920c2b0640f3c3f774d53c781