libertas: use roundup instead of opencoding

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Ilpo Järvinen 2008-12-13 21:33:13 +02:00 • committed by John W. Linville
commit 23827926eb