Merge pull request #128 from aws-lumberyard-dev/UpdateMultiplayerSampleScanFolderToPortableReference

Updated the MultiplayerSampleData ScanFolder to use a portable reference to the Atom gem.

Gem/Code/enabled_gems.cmake

@@ -39,7 +39,7 @@ set(ENABLED_GEMS
     LmbrCentral
     LyShine
     HttpRequestor
-    Atom_AtomBridge
+    Atom
     AWSCore
     AWSClientAuth
     AWSMetrics

Registry/assetsprocessor_settings.setreg

@@ -9,7 +9,7 @@
                     "ignore": true
                 },
                 "ScanFolder MultiplayerSampleData": {
-                    "watch": "@ENGINEROOT@/Gems/Atom/TestData",
+                    "watch": "@GEMROOT:Atom@/TestData",
                     "recursive": 1,
                     "order": 1000
                 },