David Brownell <david-b@pacbell.net> Bugfix: $target_name cget/configure -work-area-backup commands

should return the "is it backed up?" flag, not the work area size.

git-svn-id: svn://svn.berlios.de/openocd/trunk@2108 b42882b7-edfa-0310-969c-e2dbd0fdcd60