Merge tag 'mailbox-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox

Pull mailbox updates from Jassi Brar:

 - imx: add support for i.MX95 ELE/V2X MU

 - misc: I will be signing-off from my personal gmail id from now on

* tag 'mailbox-v6.9' of git://git.kernel.org/pub/scm/linux/kernel/git/jassibrar/mailbox:
  mailbox: imx: support i.MX95 Generic/ELE/V2X MU
  mailbox: imx: populate sub-nodes
  mailbox: imx: get RR/TR registers num from Parameter register
  mailbox: imx: support return value of init
  dt-bindings: mailbox: fsl,mu: add i.MX95 Generic/ELE/V2X MU compatible