s4-common: Remove unused init entries and scripts

Change-Id: I5e56d11186ff5524db9880004ddc361b99ad07bf
s4-common: Move directory creation to post-fs-data

Change-Id: I4d765af371b2ada5bbab16aa2e336637714b8863
Merge remote-tracking branch 'cm/cm-11.0' into HEAD