t6-common: Add Widevine proprietary libs

* HTC package version: 3.23.401.1
Merge pull request #84 from Flyhalf205/cm-11.0

t6-common: Add Widevine proprietary libs
m4: Add Widewine proprietary libs

* HTC package version: 4.09.401.3
Merge pull request #85 from u-ra/cm-11.0

m4: Add Widewine proprietary libs
Merge branch 'cm-11.0' of github.com:TheMuppets/proprietary_vendor_htc into cm-11.0