open-isns: add 'all' as valid option for debugging
open-isns: add 'all' as valid option for debugging

Add option 'all' for debugging so we don't have to remember all
possible debugging options.

Signed-off-by: Hannes Reinecke <b0d1e9e4a4e27620745ff49be9000da3174a4cc6@suse.de>

gonzoleeman/open-isns,gonzoleeman/open-isns,gonzoleeman/open-isns