ANU frequency is in MHz, not hex.
Allow running cgminer in benchmark mode with a work file --benchfile
format fix and bad variable usage fix for --benchfile
Merge pull request #546 from kanoi/master

Allow running cgminer in benchmark mode with a work file --benchfile
Add Avalon2 (2U size machine) support

Signed-off-by: Xiangfu <xiangfu@openmobilefree.net>