Not every arch has io memory.
So, unbreak the build by fixing the dependencies.
Signed-off-by: NRichard Weinberger <richard@nod.at>
Cc: user-mode-linux-devel@lists.sourceforge.net
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: http://lkml.kernel.org/r/1453760661-1444-21-git-send-email-richard@nod.atSigned-off-by: NThomas Gleixner <tglx@linutronix.de>