[YOCTO #1492]
This patch refactors avahi into a core non ui and avahi-ui, OE-Classic
has a similar factoring, and it was used as a refernce to make this
occur correctly here.
This allows the package to be built without gtk and GPLv3 issues.
(From OE-Core rev: a3909a6a42a1e3e80b7f2597f95ecb7db2814d2d)
Signed-off-by: Saul Wold <sgw@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>