More auto-doc work.

Add support for AnyThread, CallSuper, and UiThread.

Another related CL started documenting @RequiresPermission, so remove
duplicated information in existing APIs.

Suppress auto-doc on a handful of classes that are already
well-documented.

Test: make -j32 offline-sdk-docs
Bug: 37526420
Change-Id: I791437dccec0f11d5349a23b982ba098cb551af8