arm64: dts: qcom: msm8916/39: Use consistent name for I2C/SPI pinctrl

Make the labels for the BLSP I2C/SPI pinctrl consistent with the one
used for UART by adding the missing blsp_ prefix. This allows having
them properly grouped together.

The nodes are only reordered in msm8939.dtsi for now since the pinctrl
definitions in msm8916-pins.dtsi are currently still unordered anyway.
(I will try fixing this in a future patch.)

Signed-off-by: Stephan Gerhold <stephan@gerhold.net>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230525-msm8916-labels-v1-3-bec0f5fb46fb@gerhold.net