Symptom:
While trying to modify the boot order in boot policy which has san device an error like the following gets displayed.
"Boot order numbers must be unique between org-root/boot-policy-<boot policy name>/storage and org-root/boot-policy-<boot policy name>/lan device."

Conditions:
Case (a)
a.	User has a San boot device under storage group (Storage ->SanImage) in pre-elcapitan release (ex: 2.1) and the storage boot order is set to 1 
b.	User has another boot device (ex: Lan, vMedia etc) and the boot order is set to 2 
c.	Once it is upgraded to elcpaitan (2.2 rel) and then user tried to alter the boot order between these two devices (modify SanMo's order to 2 and LanMo's order to 1), this issue will be observed.

Case (b)
a.	User created a San boot device under storage (Storage ->SanImage) from CLI or XML interface in elcapitan release  (2.2) and the storage boot order is set to 1 
b.	PLEASE NOTE THAT THE ABOVE IS NOT POSSIBLE FROM GUI as GUI ALWAYS USES  SANMO HIERARCHY 
c.	User has another boot device (ex: Lan, vMedia etc) and the boot order is set to 2
d.	Now when user trying to alter the boot order between these two devices (modify SanMo's order to 2 and LanMo's order to 1), this issue will be observed.