[NAN-AWARE] Rename NAN to Aware

~Rename only (and any reformatting needed to pass lint) - no
functional changes!

Remove android.net.wifi.nan.STATE_CHANGED from manifest:
redundant/remnant of an older configuration.

(cherry-pick of commit a61b9fb5)
(cherry-pick of commit b061f21e7e59a99834e163e2baa1c82229e419a6)

Bug: 32263750
Test: All unit tests and integration (sl4a) tests pass.
Change-Id: Ie4ff675fa61041e8fcf6a9bf9900ea835d0a7614