Even more auto-doc work.

Update docs based on what new lint detector found.  Add new @IntDef
to parameters or methods returning constants or flags, and add
@RequiresPermission to methods mentioning permissions.

Test: make -j32 offline-sdk-docs
Bug: 37526420
Change-Id: I7f640f7883fcb66b911a52ae93b83f77306571ec
15 files changed