make_ext4fs: Allow custom filesystem configs

Before we used the "fs_config" function from
android_filesystem_config.h, but we want to use make_ext4fs with ASEC
containers which will not always be mounted in the same place.

Bug: 6258335
Change-Id: Icf62e3c46425f01434bf92a9823f8d542b0fa5b1
3 files changed