anv/cmd_buffer: Disable CCS on BDW input attachments

The description under RENDER_SURFACE_STATE::RedClearColor says,

   For Sampling Engine Multisampled Surfaces and Render Targets:
    Specifies the clear value for the red channel.
   For Other Surfaces:
    This field is ignored.

This means that the sampler on BDW doesn't support CCS.

Cc: Samuel Iglesias Gonsálvez <siglesias@igalia.com>
Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Jason Ekstrand <jason@jlekstrand.net>
Signed-off-by: Nanley Chery <nanley.g.chery@intel.com>