dt-bindings: mailbox: imx-mu: Add bindings for i.MX93
Description: Add bindings for i.MX93
Bugzilla: http://bugzilla.redhat.com/2137972
Build Info: https://brewweb.engineering.redhat.com/brew/taskinfo?taskID=48816999
Tested: Did sanity boot testing on i.MX 8M (nxp-imx8mquad-01.edge1) system.
Signed-off-by: Steve Best sbest@redhat.com