samba: disable avahi and build without acl

disable avahi and acl to avoid some random build failures. We do not want
samba to auto-detect the presence of avahi and/or acl, explicitly disabling
or enabling them guarantees a more predictable build process

Signed-off-by: Fahad Usman <fahad_usman@mentor.com>
Signed-off-by: Martin Jansa <Martin.Jansa@gmail.com>