Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/drivers/gpio/mc33880.c b/drivers/gpio/mc33880.c
index 00f6d24..4ec7975 100644
--- a/drivers/gpio/mc33880.c
+++ b/drivers/gpio/mc33880.c
@@ -45,7 +45,7 @@
  * To save time we cache them here in memory
  */
 struct mc33880 {
-	struct mutex	lock;	/* protect from simultanous accesses */
+	struct mutex	lock;	/* protect from simultaneous accesses */
 	u8		port_config;
 	struct gpio_chip chip;
 	struct spi_device *spi;