Check underlying intent as well as intent selector

When checking if an intent can be forwarded across profiles, the
selector action is checked rather than the intent itself.
This means badIntents can be spoofed with a different selector and
launched across profiles.

Bug: 376674080
Test: manually tested
Flag: EXEMPT bugfix

Change-Id: If04e1020fc5a09f04630ba08d7e3b3012f2aa577