[PATCH] USB: fix pxa2xx_udc compile warnings

This patch fixes several types in the PXA25x udc driver and hence fixes
several compiler warnings.

Signed-off-by: Richard Purdie <rpurdie@rpsys.net>
Acked-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>