Install config files to /etc/default/

Related: OS#4326
Change-Id: Ibff534c2f247557bb4eb0f72b8babe85ad0b315b
diff --git a/contrib/etc_default/Makefile.am b/contrib/etc_default/Makefile.am
index 49c9fe6..b95c645 100644
--- a/contrib/etc_default/Makefile.am
+++ b/contrib/etc_default/Makefile.am
@@ -1,3 +1,8 @@
-EXTRA_DIST = osmo-remsim-bankd \
-	     osmo-remsim-client \
-	     osmo-remsim-client-0 osmo-remsim-client-1 osmo-remsim-client-2 osmo-remsim-client-3
+OSMOCONF_FILES = osmo-remsim-bankd \
+		 osmo-remsim-client \
+		 osmo-remsim-client-0 osmo-remsim-client-1 osmo-remsim-client-2 osmo-remsim-client-3
+
+EXTRA_DIST = $(OSMOCONF_FILES)
+
+osmoconfdir = $(sysconfdir)/default
+osmoconf_DATA = $(OSMOCONF_FILES)