Check the pairing request from which device that if it's the outgoing
set member pairing, accept the pairing request automatically to make the
CSIP pairing seamless.
Bug: 178981521
Bug: 150670922
Test: Pair one of the CSIP device, and confirm the other set member can
paired without the confirmation from user
Change-Id: I40afabb09b4cb12a0253035452c9f6974799ed05