modules: update OpenWrt

a297324a135a base-files: fix wrong sysctl parameter order
1e48546a6ad1 igmpproxy: run in foreground for procd

modules

@@ -2,7 +2,7 @@ GLUON_FEEDS='packages routing luci gluon'
 
 OPENWRT_REPO=https://git.openwrt.org/openwrt/openwrt.git
 OPENWRT_BRANCH=openwrt-18.06
-OPENWRT_COMMIT=f8cc68670fcf2e6912ead308240ce1af4652b8c3
+OPENWRT_COMMIT=a297324a135a699eb872e37461fad34a09281122
 
 PACKAGES_PACKAGES_REPO=https://github.com/openwrt/packages.git
 PACKAGES_PACKAGES_BRANCH=openwrt-18.06