Add pattern to match android-plus-updatable.jar

Change https://r.android.com/3068903 adds some extra
`android-plus-updatable.jar` files in `module-lib` and `system-server`
directories of API versions 30 through 34 in `prebuilts/sdk`. This
change modifies the build to pass those files, along with appropriate
`--android-jar-pattern` options to Metalava so it can use them when
generating `api-versions.xml` files for the different API surfaces.

The extra patterns are only passed when `extension_info_file` is
specified as there is no point in including the updatable modules that
contribute to SDK extensions without providing information about the
SDK extensions as well.

Bug: 337836752
Test: See https://r.android.com/3068903
Change-Id: I439179a9d35a4bb677e3bf87a3aea4a983724534