arm64: dts: qcom: msm8916-wingtech-wt865x8: Add Lenovo A6000/A6010

arm64: dts: qcom: msm8916-wingtech-wt865x8: Add Lenovo A6000/A6010

Add initial device-tree for Lenovo A6000 (wt86518) and Lenovo A6010
(wt86528), which are MSM8916-based devices. These devices are quite
similar, so some configuration is shared in msm8916-wingtech-wt865x8.dtsi.

Lenovo A6000 (wt86518):
 - storage (eMMC and uSD card);
 - usb in peripheral mode;
 - touchscreen;
 - sensors;
 - WiFi/BT;
 - keys;
 - battery and charger.

Lenovo A6010 (wt86528):
 - storage (eMMC and uSD card);
 - usb with extcon;
 - touchscreen;
 - sensors;
 - WiFi/BT;
 - keys;
 - leds;
 - battery;

Signed-off-by: Anton Bambura <jenneron@postmarketos.org>
Co-developed-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
[Nikita: minor cleanup]
Signed-off-by: Nikita Travkin <nikita@trvn.ru>
Link: https://lore.kernel.org/r/20240729-msm89xx-wingtech-init-v3-2-32c35476f098@trvn.ru
Signed-off-by: Bjorn Andersson <andersson@kernel.org>