s/initalize/initialize/ in comment or printf message.

From: Petri Laakso <petri.laakso@asd.fi>
- Enable 24MHz clock for the Digital Filter.

iMX233/OLinuXino changes from Petri Laskso.
See http://mail-index.netbsd.org/port-arm/2013/10/07/msg002042.html