modules: update openwrt

ef4fc5cc1d hostapd: bump PKG_RELEASE
85ff47c6be hostapd: don't ignore probe-requests with invalid DSSS params
f12cf43029 ramips: yuncore_g720: fix buttons

modules

@@ -2,7 +2,7 @@ GLUON_FEEDS='gluon packages routing'
 
 OPENWRT_REPO=https://github.com/openwrt/openwrt.git
 OPENWRT_BRANCH=openwrt-23.05
-OPENWRT_COMMIT=cc0527b36281e7347f4da1b1169e11e7215c8c60
+OPENWRT_COMMIT=ef4fc5cc1da63f87eb3425f1b7737c149ea157e1
 
 PACKAGES_GLUON_REPO=https://github.com/freifunk-gluon/packages.git
 PACKAGES_GLUON_COMMIT=3d08b0fee8dc5d96d8bcdb985fad1d5564de4022