[libamplayer] Add HEVC format to Android 4.4 patch
[AMLUtils] Change some more permissions

In current Android 4.4.2 sources we need to change
permissions to 666 for following:

    /dev/amvideo
    /dev/amstream_sub
    /dev/amstream_sub_read
    /dev/amstream_rm
    /dev/amstream_mpps
    /dev/amstream_mpts
    /dev/amstream_abuf
    /dev/amstream_vbuf
Merge pull request #4833 from Stane1983/aml-kk-patch2

Amlogic Android 4.4.2 patchset