arm64: dts: qcom: sc7180: Add pompom rev3

The only kernel visible change with respect to rev2 is that pompom
rev3 changed the charger thermistor from a 47k to a 100k NTC to use
a thermistor which is supported by the PM6150 ADC driver.

Disable the charger thermal zone for pompom rev1 and rev2 to avoid
the use of bogus temperature values from the unsupported thermistor.

Signed-off-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20210322094628.v4.2.I4138c3edee23d1efa637eef51e841d9d2e266659@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

arm64: dts: qcom: Add sc7180-trogdor-pompom skus

This is a trogdor variant. This is mostly a grab from the downstream
tree with notable exceptions:
- I skip -rev0. This was a super early build and there's no advantage
of long term support.
- In -rev1 I translate the handling of the USB hub like is done for
similar boards. See the difference between the downstream and
upstream 'sc7180-trogdor-lazor-r0.dts' for an example. This will
need to be resolved when proper support for the USB hub is figured
out upstream.
- I remove sound node since sound hasn't landed upstream yet.
- In incorporate the pending <https://crrev.com/c/2719075> for the
keyboard.

Cc: Philip Chen <philipchen@google.com>
Cc: Matthias Kaehlcke <mka@chromium.org>
Cc: Stephen Boyd <swboyd@chromium.org>
Cc: Tzung-Bi Shih <tzungbi@chromium.org>
Cc: Judy Hsiao <judyhsiao@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20210301133318.v2.12.If93a01b30d20dccacbad4be8ddc519dc20a51a1e@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>