modules: update OpenWrt

62feabecd8 kernel: bump 4.14 to 4.14.99
9fb3710a8b kernel: bump 4.9 to 4.9.156
e5ace80759 mt76: update to the latest version
fbb2186fbd kernel: bump 4.14 to 4.14.98
72870cc108 kernel: bump 4.9 to 4.9.155
19a6c4b2b3 mac80211: brcmfmac: fix a possible NULL pointer dereference
d997712c71 ath9k: register GPIO chip for OF targets

Compile-tested: ipq40xx, ramips-mt7621
Runtime-tested: none

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=9b14c7d3d1fb7666a9d75373b87fb8c8179ef21c
+OPENWRT_COMMIT=62feabecd8a84cfe0d6a5aa3bad2720dbf328370
 
 PACKAGES_PACKAGES_REPO=https://github.com/openwrt/packages.git
 PACKAGES_PACKAGES_BRANCH=openwrt-18.06