drm/i915/psr: Do PSR exit on frontbuffer flush on LunarLake and onwards

drm/i915/psr: Do PSR exit on frontbuffer flush on LunarLake and onwards

We need to use intel_psr_exit in frontbuffer flush on LunarLake and
onwards if we want to move using trans push mechanism to trigger Frame
Change event.

Keep PSR1 and PSR2 HW tracking as it is for older platforms as this was
seen causing problems there.

v2: typo fixed

Signed-off-by: Jouni Högander <jouni.hogander@intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patch.msgid.link/20260127124120.1069026-10-jouni.hogander@intel.com