drivers: gpio_gecko: Use emlib API for compatibility

This ensures compatibility with Silicon Labs EXX32 MCU Series 1.

Signed-off-by: Gil Benkö <gil.benkoe@pm.me>
Signed-off-by: Christian Taedcke <hacking@taedcke.com>

drivers/gpio/gpio_gecko.c

@@ -154,21 +154,13 @@ static int gpio_gecko_write(struct device *dev,
 			 * Writing zeros to the other bits leaves the data
 			 * output unchanged for the other pins.
 			 */
-#if defined(_GPIO_P_DOUTSET_MASK)
-			gpio_base->DOUTSET = BIT(pin);
-#else
-			BUS_RegBitWrite(&gpio_base->DOUT, pin, 1);
-#endif
+			GPIO_PinOutSet(config->gpio_index, pin);
 		} else {
 			/* Clear the data output for the corresponding pin.
 			 * Writing zeros to the other bits leaves the data
 			 * output unchanged for the other pins.
 			 */
-#if defined(_GPIO_P_DOUTCLR_MASK)
-			gpio_base->DOUTCLR = BIT(pin);
-#else
-			BUS_RegBitWrite(&gpio_base->DOUT, pin, 0);
-#endif
+			GPIO_PinOutClear(config->gpio_index, pin);
 		}
 	} else { /* GPIO_ACCESS_BY_PORT */
 		/* Write the data output for all the pins */