arm64: dts: qcom: msm8916-lg-c50: add initial dts for LG Leon LTE

Add initial device-tree for LG Leon LTE (lg-c50), currently supported
features:
- eMMC;
- MicroSD;
- usb in peripheral mode;
- WiFi/BT;
- vibration;
- keys.

Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240623-msm8916-lg-initial-v1-3-6fbcf714d69b@trvn.ru


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