dts: bindings: Add pin control to STM32 UCPD DTS bindings file
dts: bindings: Add pin control to STM32 UCPD DTS bindings file

Add pin control properties to the STM32 UCPD bindings file so that
the pins can be configured in the device tree.

Signed-off-by: Sam Hurst <f5a9a7a3c43e6bdd2ccfb8b7fc2e1bb9f1b6bcb2@gmail.com>

finikorg/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,galak/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,finikorg/zephyr,galak/zephyr,zephyrproject-rtos/zephyr,zephyrproject-rtos/zephyr,finikorg/zephyr,galak/zephyr,galak/zephyr