nautilus3: fix packaging issue

* ERROR: QA Issue: non debug package contains .debug directory: nautilus3 path /work/armv5te-oe-linux-gnueabi/nautilus3/3.2.1-r3/packages-split/nautilus3/usr/lib/nautilus/extensions-3.0/.debug/libnautilus-sendto.so

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