[ARM] 3708/2: fix SMP build after section ioremap changes

Patch from Lennert Buytenhek

Commit ff0daca5 broke the SMP build,
this patch fixes it up again.

Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>