API Feedback: rename AddServiceWithFlag with plurals

Make AServiceManager_addServiceWithFlags method plural since the
argument flags passed into the methods should be a bitmask which can
contain multiple options.

Bug: 272102518
Test: libbinder_ndk_unit_test
Change-Id: I0c31ef78f187be728e7c86c429a670b3a9081b36
Merged-In: I0c31ef78f187be728e7c86c429a670b3a9081b36
3 files changed