ANDROID: android-base.cfg: add CONFIG_MODULES option

This adds CONFIG_MODULES, CONFIG_MODULE_UNLOAD, and CONFIG_MODVERSIONS
which are required by the O release.

Bug: 35803310
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>
(cherry picked from commit 56f22e654a311f3c2492b8b3609916265fe34e20)