shim used on amber/browser-compatibility

Not on amber/boot, which is true AMD project, on which "shim" is not to be used.

local.amd.json

@@ -1,5 +1,5 @@
 {
     "shim": {
-        "amber/boot": ["./es5-shim", "./es5-sham"]
+        "amber/browser-compatibility": ["./es5-shim", "./es5-sham"]
     }
 }