1) Package gail modules into libgail package. .la files go into main
gtk+-dev package, debug symbols to gtk+-dbg.
2) For completeness add printerbackends .la files to gtk+-dev
(From OE-Core rev: a797c4ff1246566b545dc6cab2713a04f24fea6e)
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>