greybus: operation: use the bundle struct device instead of the connector
We are removing struct device from the gb_connection structure in the
near future. The gb_bundle structure's struct device should be used as
a replacement.
This patch moves the operation code to use to use the bundle pointer
instead of the connection pointer when printing out error messages.
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com> Reviewed-by: Alex Elder <elder@linaro.org>