fix typos concerning "initiali[zs]e"

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/arch/arm/mach-u300/gpio.c b/arch/arm/mach-u300/gpio.c
index 5f61fd4..d927901 100644
--- a/arch/arm/mach-u300/gpio.c
+++ b/arch/arm/mach-u300/gpio.c
@@ -523,7 +523,7 @@
 
 	/*
 	 * Put all pins that are set to either 'GPIO_OUT' or 'GPIO_NOT_USED'
-	 * to output and 'GPIO_IN' to input for each port. And initalize
+	 * to output and 'GPIO_IN' to input for each port. And initialize
 	 * default value on outputs.
 	 */
 	for (i = 0; i < U300_GPIO_NUM_PORTS; i++) {