This trivial patch removes long-standing typo in ibm44x.h.  In fact, we
already have correct DCRN_CPC0_GPIO define later in the same file.
Signed-off-by: Eugene Surovegin <ebs@ebshome.net>
Signed-off-by: Matt Porter <mporter@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>