arm64: dts: qcom: sc7280: Add touchscreen and touchpad support for evoker

Change touchpad and touchscreen node for evoker
Touchpad: SA461D-1011
Touchscreen: GT7986U

Signed-off-by: Sheng-Liang Pan <sheng-liang.pan@quanta.corp-partner.google.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@somainline.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221107173954.v11.3.I3ac715e729f6f9b5a3e3001b155df4f9d14e6186@changeid