arm64: dts: qcom: sm6125: Add pin configs for QUP SPI/I2C Serial Engines

Add pin setup for SPI/I2C Serial Engines that are supported under the
Qualcomm Universal Peripheral found on SM6125.

[Un-nest pins, remove duplicate pins= properties, follow new node naming
 conventions, fix qup_14 -> qup14 function typo]

Signed-off-by: Martin Botka <martin.botka@somainline.org>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20221216233408.1283581-2-marijn.suijten@somainline.org