iommu/ipmmu-vmsa: Hook up r8a7795 DT matching code

Tie in r8a7795 features and update the IOMMU_OF_DECLARE
compat string to hook up the updated compat string.

TODO:
 - Go over init order once more
 - Consider counting number of IPMMU devices from ->xlate()
 - Experiment with delaying call to bus_set_iommu()

Signed-off-by: Magnus Damm <damm+renesas@opensource.se>
1 file changed