UPSTREAM: drm/i915/dsb: Allow DSB to perform commits when VRR is enabled

Now that we know how to issue the push with the DSB we can
allow the DSB to drive the commits even when VRR is active.

Cc: Paz Zcharya <pazz@chromium.org>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250116201637.22486-9-ville.syrjala@linux.intel.com


(cherry picked from commit 83db7bf1)

Bug: 432032023
Test: None
Change-Id: Ic5b3fd0e20f4ccdb4ed2909c6a354703d5b97e4d
Signed-off-by: Ap, Kamal <kamal.ap@intel.corp-partner.google.com>