proportions: Spelling s/consitent/consistent/

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Jiri Kosina <jkosina@suse.com>

include/linux/proportions.h

@@ -33,7 +33,7 @@ struct prop_global {
 /*
  * global proportion descriptor
  *
- * this is needed to consitently flip prop_global structures.
+ * this is needed to consistently flip prop_global structures.
  */
 struct prop_descriptor {
 	int index;