Fixes #7943.

Access to engineering equipment is now enough to manipulate shield generators.

code/modules/shieldgen/sheldwallgen.dm

@@ -6,7 +6,7 @@
 		icon_state = "Shield_Gen"
 		anchored = 0
 		density = 1
-		req_access = list(access_teleporter)
+		req_access = list(access_engine_equip)
 		var/active = 0
 		var/power = 0
 		var/state = 0