DRM: Armada: fix printing of phys_addr_t/dma_addr_t

These can be 64-bit quantities, so fix them up appropriately.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>