arm64: dts: qcom: sdm630: Add missing MDSS reset

arm64: dts: qcom: sdm630: Add missing MDSS reset

If the OS does not support recovering the state left by the
bootloader it needs a way to reset display hardware, so that it can
start from a clean state. Add a reference to the relevant reset.

It fixes display init issue appeared in Linux v6.17: without reset
device boots into black screen and you need to turn display off/on
to "fix" it. Also sometimes it can boot into solid blue color
with these messages in kernel log:

  hw recovery is not complete for ctl:2
  [drm:dpu_encoder_phys_vid_prepare_for_kickoff:569] [dpu error]enc33
      intf1 ctl 2 reset failure: -22
  [drm:dpu_encoder_frame_done_timeout:2727] [dpu error]enc33 frame
      done timeout

Fixes: 0e789b491ba0 ("pmdomain: core: Leave powered-on genpds on until sync_state")
Cc: stable@vger.kernel.org # 6.17
Signed-off-by: Alexey Minnekhanov <alexeymin@postmarketos.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Link: https://lore.kernel.org/r/20251116-sdm660-mdss-reset-v2-3-6219bec0a97f@postmarketos.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>