fix comment typos concerning "consistent"

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/arch/m68k/mac/psc.c b/arch/m68k/mac/psc.c
index ba6ccab..a4c3eb6 100644
--- a/arch/m68k/mac/psc.c
+++ b/arch/m68k/mac/psc.c
@@ -88,7 +88,7 @@
 
 	/*
 	 * The PSC is always at the same spot, but using psc
-	 * keeps things consisant with the psc_xxxx functions.
+	 * keeps things consistent with the psc_xxxx functions.
 	 */
 
 	psc = (void *) PSC_BASE;