Add a.f.displayservice to manifest.xml.

This is served by surface flinger.

Test: VtsFwkDisplayServiceV1_0TargetTest
Bug: 38311538
Change-Id: I03d01db60cb9c37d4837e5984aec22751691ec61
diff --git a/manifest.xml b/manifest.xml
index 693bcbe..b47cd59 100644
--- a/manifest.xml
+++ b/manifest.xml
@@ -36,6 +36,15 @@
         </interface>
     </hal>
     <hal>
+        <name>android.frameworks.displayservice</name>
+        <transport>hwbinder</transport>
+        <version>1.0</version>
+        <interface>
+            <name>IDisplayService</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+    <hal>
         <name>android.frameworks.schedulerservice</name>
         <transport>hwbinder</transport>
         <version>1.0</version>