ARM: dts: qcom: msm8974-castor: Fix touchscreen init

On some devices a higher delay is needed, otherwise touchscreen probe
fails.

Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221121213019.324558-1-luca@z3ntu.xyz