[source] mt76: update to the latest version, reverts MAC address changes causing performance regressions

[LEDE Commits]

nbd pushed a commit to source.git, branch master:
https://git.lede-project.org/a428d9229eab8d3ab2421fdf79042e8f6b634b58

commit a428d9229eab8d3ab2421fdf79042e8f6b634b58
Author: Felix Fietkau <nbd at nbd.name>
AuthorDate: Sun Dec 17 12:41:58 2017 +0100

    mt76: update to the latest version, reverts MAC address changes causing performance regressions
    
    cf4a5ce mt76: fix memcpy to potential null pointer on failed allocation
    ca5ca8c mt76x2: fix possible NULL pointer dereferencing in mt76x2_ampdu_action()
    2d4b8f5 mt76x2: mac: fix possible NULL pointer dereferencing in mt76x2_mac_write_txwi()
    4ca8bba mt76x2: eeprom: fix typo in mt76x2_get_power_info_5g()
    00f7e60 mt7603: fix configuration for HT40
    31e9bdb mt7603: main: fix possible NULL pointer dereferencing in mt7603_ampdu_action()
    bf90dd2 mt7603: mcu: fix potential NULL pointer dereferencing on failed allocation
    860b185 Revert "mt76x2: init: disable APCLI by default"
    bcd576e Revert "mt76x2: drop wiphy->addresses"
    bdc6f2f Revert "mt76x2: clean up MAC/BSSID address initialization"
    d242650 Revert "mt76x2: remove MAC address limitation for multi-vif setups"
    68b0cf1 mt76x2: add functions for setting extended MAC address registers
    
    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 6d96ff2..441f59e 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:=2017-12-08
-PKG_SOURCE_VERSION:=e50465605266118060df1b86eb7641c65fd29c65
-PKG_MIRROR_HASH:=3d7d3aa29c1e8dabe8f2c0a14480140f60ddc73681510aadbf07c5a1e5efac6e
+PKG_SOURCE_DATE:=2017-12-17
+PKG_SOURCE_VERSION:=68b0cf17efe32623efd2a46d33b0b551bb78cbbe
+PKG_MIRROR_HASH:=855901e5e02249f53bb943d2d5da5bb3cb357f02e4c68c6291604867e250e9bd
 
 PKG_MAINTAINER:=Felix Fietkau <nbd at nbd.name>
 PKG_BUILD_PARALLEL:=1