drivers: gpio: fix gpio_emul driver to allow multiple instances
drivers: gpio: fix gpio_emul driver to allow multiple instances

A missing semicolon caused compiler errors when more than one emulated
gpio device was defined in the device tree.

Signed-off-by: Jan Peters <a5186ea9e1ee34921f6faf65c1d013408f62e7fc@kt-elektronik.de>

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