greybus: stop storing hd in message

The host device pointer doesn't have to be stored in every message.
It can be derived by following up the chain of pointers back to
the operation's connection.

Signed-off-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
2 files changed
tree: 5a587f62bf6bb9e3b6b56b87050321499e58168d
  1. drivers/