msm: cpp: Add support for updating buffer distance for metadata.

Set group buffer command is not updating metadata address for
different planes. Add the change to update the metadata address
for all planes and all buffers in the batch. This changes the
offset for the duplicate frame indicator and length of the command.
Update the  device tree and documentation with new values.

Change-Id: I67afffcb6e118274aa7ce4546a6bad56e52b14f5
Signed-off-by: Krishnankutty Kolathappilly <kkolatha@codeaurora.org>