interface.h: remove unused #defines

MAX_CPORTS_PER_MODULE and MAX_STRINGS_PER_MODULE are not used anywhere
anymore, so remove them lest someone thing we have limits.

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

Align up the BIT() #defines and properly comment the include block
define.

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