Use libvirtd service in Ubuntu

Starting with Ubuntu 16.10, libvirtd is available, so use it
to keep the same standard across all distributions.

Signed-off-by: Lucio Correia <luciojhc@linux.vnet.ibm.com>

Makefile.am

@@ -161,7 +161,7 @@ install-data-local:
 	@if test -d "$(systemdsystemunitdir)" ; then \
 		mkdir -p $(DESTDIR)/etc/systemd/system/wokd.service.d; \
 		if test -f /etc/debian_version; then \
-			$(INSTALL_DATA) contrib/kimchid.service.ubuntu $(DESTDIR)/etc/systemd/system/wokd.service.d/kimchi.conf; \
+			$(INSTALL_DATA) contrib/kimchid.service.debian $(DESTDIR)/etc/systemd/system/wokd.service.d/kimchi.conf; \
 		else \
 			$(INSTALL_DATA) contrib/kimchid.service.fedora $(DESTDIR)/etc/systemd/system/wokd.service.d/kimchi.conf; \
 		fi; \

contrib/kimchid.service.debian

@@ -0,0 +1,8 @@
+[Unit]
+Requires=wokd.service
+Wants=libvirtd.service
+After=libvirtd.service wokd.service
+
+[Service]
+Nice=0
+PrivateTmp=no