keepalived: add upgrade script for globals section

Signed-off-by: Florian Eckert <fe@dev.tdt.de>

net/keepalived/files/etc/uci-defaults/keepalived

@@ -0,0 +1,12 @@
+#!/bin/sh
+
+# Check if old config section is still in use
+uci show keepalived.@global_defs[-1] 1>/dev/null 2>/dev/null
+if [ "$?" -eq "0" ]; then
+	uci -q rename keepalived.@global_defs[-1]=globals
+	uci -q commit keepalived
+	sed -i "s|^config global_defs 'globals'$|config globals 'globals'|" \
+		/etc/config/keepalived
+fi
+
+exit 0