linux-phytec-ti

bindings: soc: ti: add documentation for k3 ringacc

The Ring Accelerator (RINGACC or RA) provides hardware acceleration to
enable straightforward passing of work between a producer and a consumer.
There is one RINGACC module per NAVSS on TI AM65x SoCs.

This patch introduces RINGACC device tree bindings.

Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>