drm/i915: Program DP SDPs on pipe updates

Call intel_dp_set_infoframes() function on pipe updates to make sure
that we send VSC SDP and HDR Metadata Infoframe SDP (when applicable)
on fastsets.

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200514060732.3378396-12-gwan-gyeong.mun@intel.com