arm64: dts: qcom: sm8250-xiaomi-elish: remove redundant empty line

Remove a redundant empty line introduced by
  commit 51c4c2bd ("arm64: dts: qcom: sm8250-xiaomi-elish-boe: Add mdss and dsi panel")

Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230517133340.21111-1-lujianhua000@gmail.com