ARM: dts: qcom: sdx65: Add pincontrol node

This commit adds pincontrol node to SDX65 dts.

Signed-off-by: Vamsi Krishna Lanka <quic_vamslank@quicinc.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/1635552125-16407-4-git-send-email-quic_vamslank@quicinc.com