android-audiosystem: add dependency on zlib

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>
base-files: add shr overrides

* it looks weird in distro layer, but this breaks base-files.do_package
  unless FILESYSTEM_PERMS_TABLES = "fs-perms-shr.txt" is also set, let
  this layer to be used even with DISTRO-less config or different DISTRO

Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>