arm64: dts: qcom: sm8250: Add wakeup-source to usb_1 and usb_2

arm64: dts: qcom: sm8250: Add wakeup-source to usb_1 and usb_2

To test out a different GDSC change I wanted to have a USB keypress resume
a system in suspend.

Adding wakeup-source to usb_1 and usb_2 "just works" for me on rb5.
Consistent with qcm2290 and sa8775p add wakeup-source to the dtsi for the
SoC.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20231109004311.2449566-2-bryan.odonoghue@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>