osmocom: Use CONFFILES for cfg files

Change-Id: I4a4c7d4a5e3e58c413c82b75f442ae9321d64998
diff --git a/recipes-osmocom/osmo-ggsn/osmo-ggsn_git.bb b/recipes-osmocom/osmo-ggsn/osmo-ggsn_git.bb
index 2751985..3aafe13 100644
--- a/recipes-osmocom/osmo-ggsn/osmo-ggsn_git.bb
+++ b/recipes-osmocom/osmo-ggsn/osmo-ggsn_git.bb
@@ -3,7 +3,7 @@
 LICENSE = "GPLv2+"
 LIC_FILES_CHKSUM = "file://COPYING;md5=8ca43cbc842c2336e835926c2166c28b"
 PV = "1.0.0+gitr${SRCPV}"
-PR = "r0"
+PR = "r1"
 
 SRCREV = "859f9b0752419d43928d465bc96a87238c6d7940"
 SRC_URI = "git://git.osmocom.org/osmo-ggsn                   \
@@ -35,6 +35,8 @@
 INITSCRIPT_NAME_osmo-ggsn = "osmo-ggsn"
 INITSCRIPT_PARAMS_osmo-ggsn = "defaults 29 29"
 
+CONFFILES_osmo-ggsn = "${sysconfdir}/osmocom/osmo-ggsn.cfg"
+
 FILES_libgtp = "${libdir}/*${SOLIBS}"
 FILES_libgtp-dev = "${includedir} ${libdir}/lib*${SOLIBSDEV} ${libdir}/*.la"
 FILES_libgtp-staticdev = "${libdir}/*.a"