ANDROID: fix up missing android-base.cfg option

This ports 6a61b529b4a92817adfb1d1393c6b914419a4555 to 4.9-common, where
the the cfg option was missed.

Cc: Jin Qian <jinqian@google.com>
Bug: 34198239
(cherry picked from commit 6a61b529b4a92817adfb1d1393c6b914419a4555)
[the config option was missed in 4.9, this syncs it back up - gregkh]
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>