Rename onSessionVerificationFailure to onSessionValidationFailure

This name is more appropriate as the method handles failure during
session validation.

We will be re-creating onSessionVerficationFailure on future cls for
handling verification failure.

Bug: 159336213
Test: builds
Change-Id: Ic54c23d01744e6725bc9c7c11ed340f803c5c900
1 file changed