m7-common: Add Widevine proprietary libs

* HTC package version: 4.07.1700.4
m7-common: update bcm4335 firmware

From m7ul 6.09.401.5.

Change-Id: I43cba789325e0e459813e220e2937cde3c6d2cdb
Merge pull request #6 from Flinny/kk4.4

Update M7 blobs