msm8974: Disable HEVC codec

 * Requires a proprietary component and does not work well on 8974
   anyway. Remove it to pass MediaCodecList CTS test.

Change-Id: I0b98f07fadef3e63842597109ea7da1a37ccea8e
Merge branch 'cm-11.0' of https://github.com/CyanogenMod/android_device_samsung_msm8974-common into cm-11.0