Pull rpmsg updates from Bjorn Andersson:
 "For the GLINK implementation this adds support for splitting outgoing
  messages that are too large to fit in the fifo, it introduces the use
  of "read notifications", to avoid polling in the case where the
  outgoing fifo is full and a few bugs are squashed.

  The return value of rpmsg_create_ept() for when RPMSG is disabled is
  corrected to return a valid error, the Mediatek rpmsg driver is
  updated to match the DT binding and a couple of cleanups are done in
  the virtio rpmsg driver"

* tag 'rpmsg-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux:
  rpmsg: glink: Send READ_NOTIFY command in FIFO full case
  rpmsg: glink: Remove channel decouple from rpdev release
  rpmsg: glink: Remove the rpmsg dev in close_ack
  rpmsg: glink: Add TX_DATA_CONT command while sending
  rpmsg: virtio_rpmsg_bus: use dev_warn_ratelimited for msg with no recipient
  rpmsg: virtio: Remove unused including <linux/of_device.h>
  rpmsg: Change naming of mediatek rpmsg property
  rpmsg: Fix rpmsg_create_ept return when RPMSG config is not defined
  rpmsg: glink: Replace strncpy() with strscpy_pad()