Build mke2fs.conf with Android.bp.

Bug: 112780007
Test: Build with other changes in the topic (aosp_taimen-userdebug).
Test: Boot into recovery. Verify basic functionalities (`adb shell` and
      `adb sideload`, factory reset).
Change-Id: Ic72c5bebf6c72373e67a483062dc160638c68a4e
2 files changed