Update Aware pairing AIDL documentation

Update the AIDL documentation for NanCapabilities#supportsPairing to
include details about supporting NAN pairing and all associated Aware R4
security features, as defined in Wi-Fi Aware Specification Version 4.0.

Bug: 406503442
Test: Build successfully
Flag: DOCS_ONLY
(cherry picked from https://googleplex-android-review.googlesource.com/q/commit:f75e53427a5cd31ad8c85dbee12d6e31248309f5)
Merged-In: Ia6e4e76cde6c172f3b9c4065ddada580eb9363a3
Change-Id: Ia6e4e76cde6c172f3b9c4065ddada580eb9363a3