The headers that are only used by board files do not necessarily
need to be in plat-mxc/include/mach.  Move them to the same place
as those board files.
Signed-off-by: NShawn Guo <shawn.guo@linaro.org>
Acked-by: NSascha Hauer <s.hauer@pengutronix.de>
Acked-by: NArnd Bergmann <arnd@arndb.de>