mt76: update to the latest version, adds stability fixes

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

Backport of r48895

git-svn-id: svn://svn.openwrt.org/openwrt/branches/chaos_calmer@48898 3c298f89-4303-0410-b956-a3cf2f4a3e73

package/kernel/mt76/Makefile

@@ -1,7 +1,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=mt76
-PKG_VERSION:=2016-02-28
+PKG_VERSION:=2016-03-03
 PKG_RELEASE=1
 
 PKG_LICENSE:=GPLv2
@@ -10,7 +10,7 @@ PKG_LICENSE_FILES:=
 PKG_SOURCE_URL:=https://github.com/openwrt/mt76
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_SUBDIR:=$(PKG_NAME)-$(PKG_VERSION)
-PKG_SOURCE_VERSION:=675868d4e84f0f4be2449c40902b229b79ecf926
+PKG_SOURCE_VERSION:=310d420178c86e253a172413da30ecf479b64251
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION)-$(PKG_SOURCE_VERSION).tar.xz
 
 PKG_MAINTAINER:=Felix Fietkau <nbd@openwrt.org>