doc: fix board name in DPS310 sample
doc: fix board name in DPS310 sample

The rename of the nrf52 boards was missed in the sample documentation.

Signed-off-by: Christoph Reiter <b125ccdc4aea7d1e0d883d875c8a3d0cbefa8343@infineon.com>

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