arm64: dts: qcom: sm8250-xiaomi-elish: Fix typos

There are two typos in this dtsi, so fix it.
  classis -> chassis.
  80700000 -> 80600000

Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
Link: https://lore.kernel.org/r/20231126022849.14273-1-lujianhua000@gmail.com


Signed-off-by: Bjorn Andersson <andersson@kernel.org>