dt-bindings: PCI: cadence: Deprecate inbound/outbound specific bindings

dt-bindings: PCI: cadence: Deprecate inbound/outbound specific bindings

Deprecate cdns,max-outbound-regions and cdns,no-bar-match-nbits for
host mode as both these could be derived from "ranges" and "dma-ranges"
property. "cdns,max-outbound-regions" property would still be required
for EP mode.

Link: https://lore.kernel.org/r/20200508130646.23939-2-kishon@ti.com
Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Acked-by: Tom Joseph <tjoseph@cadence.com>