mxc/tzic: add base address when accessing TZIC registers

When we call tzic_enable_wake function, the kernel will crash because
of access to an unmapped address. This is because two register
access operations forgot to add base address.

Signed-off-by: Jason Wang <jason77.wang@gmail.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>