Fix common misspellings

Fixes generated by 'codespell' and manually reviewed.

Signed-off-by: Lucas De Marchi <lucas.demarchi@profusion.mobi>
diff --git a/arch/arm/mach-iop13xx/pci.c b/arch/arm/mach-iop13xx/pci.c
index 773ea0c..ba3dae3 100644
--- a/arch/arm/mach-iop13xx/pci.c
+++ b/arch/arm/mach-iop13xx/pci.c
@@ -225,7 +225,7 @@
 /* This routine checks the status of the last configuration cycle.  If an error
  * was detected it returns >0, else it returns a 0.  The errors being checked
  * are parity, master abort, target abort (master and target).  These types of
- * errors occure during a config cycle where there is no device, like during
+ * errors occur during a config cycle where there is no device, like during
  * the discovery stage.
  */
 static int iop13xx_atux_pci_status(int clear)
@@ -332,7 +332,7 @@
 /* This routine checks the status of the last configuration cycle.  If an error
  * was detected it returns >0, else it returns a 0.  The errors being checked
  * are parity, master abort, target abort (master and target).  These types of
- * errors occure during a config cycle where there is no device, like during
+ * errors occur during a config cycle where there is no device, like during
  * the discovery stage.
  */
 static int iop13xx_atue_pci_status(int clear)