mt76: update to the latest version

a9d4c0e mt76: mt76x2: avoid running DPD calibration if tx is blocked
4d7e13f mt76: explicitly disable energy detect cca during scan
e3c1aad mt76: run MAC work every 100ms
4e8766a mt76: clear CCA timer stats in mt76x02_edcca_init
e301f23 mt76: measure the time between mt76x02_edcca_check runs
74075ef mt76: increase ED/CCA tx block threshold

Signed-off-by: Felix Fietkau <[email protected]>

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:=2019-01-31
-PKG_SOURCE_VERSION:=2afa0d7e7a85c7035cb396ff4a0c44d991144d83
-PKG_MIRROR_HASH:=4dee91d779aaa6e812758ff53d923e7840077c5049b9c1b6fcc26024091427f8
+PKG_SOURCE_DATE:=2019-02-03
+PKG_SOURCE_VERSION:=74075efe4432b562182cb6284a833f7a780c4654
+PKG_MIRROR_HASH:=4661464b54c9baece068e50e6c62658452edb85b7625fcbaab21098f4714eb23
 
 PKG_MAINTAINER:=Felix Fietkau <[email protected]>
 PKG_BUILD_PARALLEL:=1