drivers: misc: grove_lcd: drop GROVE_LCD_NAME
drivers: misc: grove_lcd: drop GROVE_LCD_NAME

Since the driver is now Devicetree based there are better ways to obtain
a reference to the device: use the DT node label with DEVICE_DT_GET or
continue using device_get_binding with the label defined in DT (an
arbitrary value).

Signed-off-by: Gerard Marull-Paretas <bedb45f43a286e49f4dcda039a436b216ae61ef3@nordicsemi.no>

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