Flag to remove duplicate pairing response

Flag to remove duplicate pairing response when
device is in peripheral role & OOB pairing method is selected

Test: mmm packages/modules/Bluetooth
Flag: com.android.bluetooth.flags.remove_dup_pairing_response_in_oob_pairing
Bug: 351948689
Bug: 315241296
Change-Id: I82502ff580e5f7b660ffd95c8d0a3ccc2c908fc8