Rename Server LED files

The menu item is called "Server LED".
The title is called "Server LED".
The route is server-control/server-led.

Tested: Verified server LED still works.
Change-Id: I1c70cfb6cd36868a191aa51363437dcdcc6d9a6b
Signed-off-by: Gunnar Mills <gmills@us.ibm.com>
diff --git a/app/server-control/index.js b/app/server-control/index.js
index f9aaba9..3b3600f 100644
--- a/app/server-control/index.js
+++ b/app/server-control/index.js
@@ -21,8 +21,8 @@
                 authenticated: true
               })
               .when('/server-control/server-led', {
-                'template': require('./controllers/unit-id-controller.html'),
-                'controller': 'unitIdController',
+                'template': require('./controllers/server-led-controller.html'),
+                'controller': 'serverLEDController',
                 authenticated: true
               })
               .when('/server-control/power-operations', {