Account for galaxy location on fabric
Account for galaxy location on fabric

Summary:
6packs use "LEFT", "RIGHT" while Galaxy uses "left","right".
Use case insensitive comparison for location on fabric

Reviewed By: saifhhasan

Differential Revision: D3819890

fbshipit-source-id: 9a89980d9e11a5ecafae2001a2dbd08b4023f934

peterlei/fboss,peterlei/fboss,peterlei/fboss,peterlei/fboss