drm/i915/psr: Modify dg2_activate_panel_replay to support eDP

There are couple of bits in PSR2_CTL which needs to be written in case of
eDP Panel Replay

Bspec: 68920

v2: use boolean instead of assuming eDP Panel Replay mean Early Transport

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Animesh Manna <animesh.manna@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240619062131.4021196-12-jouni.hogander@intel.com