We are going to reuse has_psr2 for panel_replay as well. Rename it
as has_sel_update to avoid confusion.

v3: do not add has_psr check into psr2 case in intel_dp_compute_vsc_sdp
v2: Rebase
Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240510093823.3146455-2-jouni.hogander@intel.com