[source] mt76: update to the latest version, fixes encrypted mesh support and HT20 issues

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/e966ed236f12b55ca98fa8c86a2e6c56ebd61f90

commit e966ed236f12b55ca98fa8c86a2e6c56ebd61f90
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Wed Nov 29 17:50:02 2017 +0100

    mt76: update to the latest version, fixes encrypted mesh support and HT20 issues
    
    fc28872 mac80211: add missing include
    a4c82ca mt7603: add missing include required on newer kernels
    792859b mt76x2: fix transmission of encrypted management frames
    a51358e mt76x2: increase OFDM SIFS time
    
    Signed-off-by: Felix Fietkau <nbd at nbd.name>
---
 package/kernel/mt76/Makefile | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/package/kernel/mt76/Makefile b/package/kernel/mt76/Makefile
index 3dc946e..be7f7d6 100644
--- a/package/kernel/mt76/Makefile
+++ b/package/kernel/mt76/Makefile
@@ -8,9 +8,9 @@ PKG_LICENSE_FILES:=
 
 PKG_SOURCE_URL:=https://github.com/openwrt/mt76
 PKG_SOURCE_PROTO:=git
-PKG_SOURCE_DATE:=2017-11-16
-PKG_SOURCE_VERSION:=8f1c8abdf70566459893a960025615a9f8c522c3
-PKG_MIRROR_HASH:=b4b4910c75b1e5be8d8fb3a2c3d1496d614563688b9ae3fe5522f78d63528e3d
+PKG_SOURCE_DATE:=2017-11-29
+PKG_SOURCE_VERSION:=a51358e3ae6bad698579a1173302387444983efd
+PKG_MIRROR_HASH:=3324a349be8e3fbde01a8fce6c2cf775b7e77614faf3b15a40ade8540d0a94ac
 
 PKG_MAINTAINER:=Felix Fietkau <nbd at nbd.name>
 PKG_BUILD_PARALLEL:=1