Ignore NotificationEntryManagerInflationTests

Unfortunately, looks like these are still flaking (most notably on
crosshatch-hwasan it seems like). May be hwasan-related but it does also
seem like some main thread messages may be leaking from other tests?

Bug: 149204632
Test: atest NotificationEntryManagerInflationTest
Change-Id: Idfb4868121796ce3cbbb2498074606e76e7fb4e3
(cherry picked from commit 3220547b)