According to "man 2 poll" the correct header to include is poll.h, not
sys/poll.h. Reported by a build against musl.
Change-Id: I5298b49dc947d1a368e423104c0c0c7b9bdd1a10
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
Reviewed-on: http://openocd.zylin.com/2947
Tested-by: jenkins