invalidate NotifFilter onStrongAuthStateChanged

When strong auth changes, the lockdown mode could change which
changes whether we show certain notifications so we must invalidate
the KeyguardCoordinator's NotifFilter to prevent b/78020486.

Test: manual
Bug: 145659174
Bug: 145134683
Change-Id: I5e7ad481fad1323943ac7bfe6d858efd0b8a0b32