Enable Sopo bool for Powershield Training

[slefforge]

Powershielding falco's lasers is an option that arguably becomes more appealing without Nana. Even ICs who wish to practice powershielding with both climbers won't mind this change as its difficult to accidentally kill nana in this event. Being able to swap which side falco is on without respawning nana will be a nice quality life change for ICs players.