Add support for ubsan.

Rather than adding LOCAL_UB_SANITIZER, LOCAL_THREAD_SANITIZER, etc for
each new sanitizer, deprecate LOCAL_ADDRESS_SANITIZER in favor of
LOCAL_SANITZE that mirrors the behavior of -fsanitize=<sanitizers>.

For example, the following will use both asan and ubsan:

    LOCAL_SANITIZE := address undefined

We'll leave LOCAL_ADDRESS_SANITIZER around for compatibility until we
can clean up the tree.

Change-Id: I8a62315129d4753f8e992584ca6db1e5dfdd4d2a