Updated SIG wording: whitelist to acceptlist

Bug: 170342881
Tag: #refactor
Test: atest --host bluetooth_test_common
Test: atest --host bluetooth_test_gd
Test: atest net_test_btif
BYPASS_INCLUSIVE_LANGUAGE_REASON=required to explain the update
Ignore-AOSP-First: Conflict with git_master.
Need to merge in internal first
Merged-In: I6707def7cca06068fbbf25f1f403bb5fd31eb215
Change-Id: I6707def7cca06068fbbf25f1f403bb5fd31eb215