Patch from Richard Purdie

Add iWMMX Extentions for the pxa27x based Zaurus models and
fix a couple of minor mistakes in the PXA Kconfig file.
Signed-off-by: NRichard Purdie <rpurdie@rpsys.net>
Signed-off-by: NRussell King <rmk+kernel@arm.linux.org.uk>