Merge tag 'rpmsg-v5.3' of git://github.com/andersson/remoteproc

Pull rpmsg updates from Bjorn Andersson:
 "This contains a DT binding update and a change to make the remote
  function of rpmsg_devices optional"

* tag 'rpmsg-v5.3' of git://github.com/andersson/remoteproc:
  rpmsg: core: Make remove handler for rpmsg driver optional.
  dt-bindings: soc: qcom: Add remote-pid binding for GLINK SMEM