Add the system feature for HDMI-CEC.

Change-Id: I2a985cedf49d50649c89f2ac5fbb80a81300156d
diff --git a/services/java/com/android/server/SystemServer.java b/services/java/com/android/server/SystemServer.java
index e0ebd54..8d38827 100644
--- a/services/java/com/android/server/SystemServer.java
+++ b/services/java/com/android/server/SystemServer.java
@@ -910,7 +910,9 @@
 
             mSystemServiceManager.startService(MediaSessionService.class);
 
-            mSystemServiceManager.startService(HdmiControlService.class);
+            if (mPackageManager.hasSystemFeature(PackageManager.FEATURE_HDMI_CEC)) {
+                mSystemServiceManager.startService(HdmiControlService.class);
+            }
 
             mSystemServiceManager.startService(TvInputManagerService.class);