add sdk_version for settingsLib flag

This change adds sdk_verion for settingsLib flag. Before the
sdk_version is missing, and by default the libraries will be built
agaist the implementation of the framework jars.

The right sdk_version is assigned to allow the libraries to use the
right scope of apis.

Test: presubmit
Bug: 333003287
Change-Id: Ia156ef01b4e2c16a7bb0a880f8d13c1727e98c11