drm/i915/psr: Split intel_psr2_config_valid for panel replay

drm/i915/psr: Split intel_psr2_config_valid for panel replay

Part of intel_psr2_config_valid is valid for panel replay. rename it as
intel_sel_update_config_valid. Split psr2 specific part and name it as
intel_psr2_config_valid.

v3:
  - move early transport check to psr2 specific check
  - check intel_psr2_config_valid only for non-Panel Replay case
v2:
  - use psr2_global_enabled for panel replay as well
  - goto unsupported instead of return when global enabled check fails

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240510093823.3146455-12-jouni.hogander@intel.com