iio: Add missing modifier names to core

some are documented, others are in iio_event_monitor.c which
was recently moved from staging

Signed-off-by: Peter Meerwald <pmeerw@pmeerw.net>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
This commit is contained in:
Peter Meerwald 2015-06-20 23:52:30 +02:00 • committed by Jonathan Cameron
commit 4b8d80157e