target_core_configfs: split up ALUA supported states
target_core_configfs: split up ALUA supported states

Split up the various ALUA states into individual attributes to
make parsing easier and adhere to the one value per attribute
sysfs principle.

(nab: Convert strict_strtoul -> kstrtoul usage)

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

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs