arm64: dts: qcom: sm8250-xiaomi-elish: Add bluetooth node

Add bluetooth node and this bluetooth module is connected to uart.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Jianhua Lu <lujianhua000@gmail.com>
Link: https://lore.kernel.org/r/20241201135716.141691-3-lujianhua000@gmail.com


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