src/mainboard: Fix various typos

These typos were found through manual review and grep.

Change-Id: Ia5a9acae4fbe2627017743106d9326a14c99a225
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reviewed-on: https://review.coreboot.org/22525
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

src/mainboard/intel/kunimitsu/romstage.c

@@ -29,7 +29,7 @@ void mainboard_romstage_entry(struct romstage_params *params)
 	/* Fill out PEI DATA */
 	mainboard_fill_pei_data(params->pei_data);
 	mainboard_fill_spd_data(params->pei_data);
-	/* Initliaze memory */
+	/* Initialize memory */
 	romstage_common(params);
 }