drm/i915: remove SDV support from lpt_pch_init_refclk
drm/i915: remove SDV support from lpt_pch_init_refclk

The machines that fall in the "is_sdv" case are some very early
pre-production steppings. This patch may break VGA output after
suspend/resume on these machines.

Even the documentation for the is_sdv cases was removed from BSpec.

Signed-off-by: Paulo Zanoni <cc0e04a2103c45cd195651d976f79813d0f66bdf@intel.com>
Reviewed-by: Ben Widawsky <73675debcd8a436be48ec22211dcf44fe0df0a64@bwidawsk.net>
Signed-off-by: Daniel Vetter <c1b6782c4af8f0673da8923a0702a1832e5940f4@ffwll.ch>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs