dts: arm: STM32: Enable DAC1 support in stm32l5 in dtsi
dts: arm: STM32: Enable DAC1 support in stm32l5 in dtsi

This commit adds DAC1 support in dtsi for stm32l5 series.

Signed-off-by: Sidhdharth Yadav <f6e96f94296714fddae5bdd9b16f23c1fbc6fcc6@hcl.com>

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