drm/i915/display: Fix vsc_sdp computation

Currently colorimetry data is not added for psr1 or non-psr case.
Fix this by adding it as needed.

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Tested-by: Shawn Lee <shawn.c.lee@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231220103609.1384523-5-jouni.hogander@intel.com