staging: tidspbridge - update Kconfig to select IOMMU module

IOMMU module most be selected when using tidspbridge, because
now tidsbridge depends on iommu module.

Signed-off-by: Fernando Guzman Lugo <x0095840@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
1 file changed