meta-samsung: drop unneeded alsa-ucm-conf-tuna

Signed-off-by: Simon Busch <morphis@gravedo.de>
meta-android: android-system: disable media service

We're going to use plain alsa and gstreamer for media playback so no need for the android
part anymore.

Signed-off-by: Simon Busch <morphis@gravedo.de>
meta-asus: grouper: use ext4.fastboot image fstype by default

Signed-off-by: Simon Busch <morphis@gravedo.de>
meta-samsung: conf: machine: tuna: use ext4.fastboot image fstype by default

Signed-off-by: Simon Busch <morphis@gravedo.de>
meta-android: chroot-script: add another distro specific boot option

It's now possible to have a rootfs directory on the Android data partition which needs to
be named with the distribution name.

Signed-off-by: Simon Busch <morphis@gravedo.de>