[packages] lxc: update to latest git version

Signed-off-by: Luka Perkov <luka@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/packages@38798 3c298f89-4303-0410-b956-a3cf2f4a3e73

utils/lxc/patches/020-lxc-checkconfig.patch

@@ -1,9 +1,9 @@
 --- a/src/lxc/lxc-checkconfig.in
 +++ b/src/lxc/lxc-checkconfig.in
-@@ -3,6 +3,17 @@
- # Allow environment variables to override grep and config
+@@ -4,6 +4,17 @@
  : ${CONFIG:=/proc/config.gz}
  : ${GREP:=zgrep}
+ : ${MODNAME:=configs}
 +: ${ZGREP:=zgrep}
 +: ${GUNZIP:=gunzip}
 +