UPSTREAM: drm/i915/vrr: Plumb the DSB into intel_vrr_send_push()

Plumb the DSB down into intel_vrr_send_push() so that we can
perform the opration on the DSB.

TRANS_PUSH, being a transcoder register, needs non-posted writes
to make it through.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241210211007.5976-17-ville.syrjala@linux.intel.com


Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
(cherry picked from commit fd95e73d)

Bug: 432032023
Test: None
Change-Id: I11301c2e2491e9c854e7e9e5e1c04a69d3913f63
Signed-off-by: Ap, Kamal <kamal.ap@intel.corp-partner.google.com>