interface_block.c: rename the "interfaces" list "bundles"

Alex pointed out one rename I missed previously, this fixes up the
interface_block list of bundles name.

Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
rename interface_block.[c|h] -> interface.[c|h]

Interface_block is being renamed to interface, so move the file first.

Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
interface: s/gb_interface_block/gb_interface/g

Rename struct gb_interface_block to struct gb_interface

Lots of renaming, and variable renames as well (gb_ib->intf), but all
should be sane with regards to the new naming scheme we are using.

Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>
interface: rename greybus_interface_block_id to greybus_interface_id

This moves the id structure name to not have "block" in it, as that
doesn't make sense anymore with the renaming of the gb_interface
structure.

Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>