arm64: dts: qcom: sc7280: Add "google,senor" to the compatible

arm64: dts: qcom: sc7280: Add "google,senor" to the compatible

The sc7280 IDP board is also called senor in the Chrome OS builds.
Add the "google,senor" compatible so coreboot/depthcharge knows what
device tree blob to pick

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
Link: https://lore.kernel.org/r/1619674827-26650-2-git-send-email-rnayak@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>