busybox-initramfs: make uvesafb support optional, and use only if needed

Signed-off-by: Stephan Raue <stephan@openelec.tv>
plymouth-lite: update splash, thanks to 'zorangr' for creating this splash

Signed-off-by: Stephan Raue <stephan@openelec.tv>
plymouth-lite: fix meta file

Signed-off-by: Stephan Raue <stephan@openelec.tv>
plymouth-lite: rework install script, cleanup splash screens

Signed-off-by: Stephan Raue <stephan@openelec.tv>
eglibc: update -fix-dns-with-broken-routers.patch

- do not send AAAA queries in v4 only environment
- do not send A quries in v6 only environment

needs more testing to ensure it does not break something else

ref #2319