Toast: Solve the NPE problem in session.java

In the if statement here, 'isFillDialogUiEnabled' should not be an
independent '||' operation, which will cause the previous addition to be
invalid. It should be in the same level as 'isViewFocusedLocked', and
use 'isRequestSupportFillDialog' replace.

Bug: 267986308

Test: Manual

Signed-off-by: hupeng3 <hp121520@gmail.com>
Change-Id: I8adc5eb7f24f2189e22b469f7c677bb2206cf3c8