arm64: dts: qcom: msm8916/39: Rename wcnss pinctrl

All the pinctrl now uses consistent _default/_sleep suffix so rename
the WCNSS pinctrl to be named consistently.

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230529-msm8916-pinctrl-v1-5-11f540b51c93@gerhold.net