Add patches for drm/i915: set HDMI pixel clock in audio configuration

Intel drm-intel Patches fixing HDMI audio clock
As of today both patches are merged in the drm-intel-nightly branch

This makes audio work on some devices that expect strict audio clock. (like of Pioneer AV receivers)

> The HDMI audio expects HDMI pixel clock to be set in the audio
> configuration. We've currently just set 0, using 25.2 / 1.001 kHz
> frequency, which fails with some modes.

http://cgit.freedesktop.org/~danvet/drm-intel/commit/?h=drm-intel-nightly&id=e9705499ace4be45c09ec5e2aaddc126f6746f1f

http://cgit.freedesktop.org/~danvet/drm-intel/commit/?h=drm-intel-nightly&id=20571990f217284aea1093dc72a1c43c0f255057