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-omap2/board-igep0020.c b/arch/arm/mach-omap2/board-igep0020.c
index 5f8a2fd..34cf982 100644
--- a/arch/arm/mach-omap2/board-igep0020.c
+++ b/arch/arm/mach-omap2/board-igep0020.c
@@ -696,7 +696,7 @@
 	igep2_init_smsc911x();
 
 	/*
-	 * WLAN-BT combo module from MuRata wich has a Marvell WLAN
+	 * WLAN-BT combo module from MuRata which has a Marvell WLAN
 	 * (88W8686) + CSR Bluetooth chipset. Uses SDIO interface.
 	 */
 	igep2_wlan_bt_init();