Fix frozen framework manifest for S.

cameraservice needs to be optional for other verticals.

Test: lunch r11 && m check-vintf-all
Bug: 203103997
Fixes: 230682426
Change-Id: Idef5b8e9fffc9cd2bac413a355ba2a1382728558
diff --git a/vintfdata/frozen/6.xml b/vintfdata/frozen/6.xml
index 14ace95..eb078c0 100644
--- a/vintfdata/frozen/6.xml
+++ b/vintfdata/frozen/6.xml
@@ -1,5 +1,9 @@
 <compatibility-matrix version="5.0" type="device">
-    <hal format="hidl" optional="false">
+    <!--
+         cameraserver is installed for all phones and tablets, but not
+         auto or TV.
+    -->
+    <hal format="hidl" optional="true">
         <name>android.frameworks.cameraservice.service</name>
         <version>2.2</version>
         <interface>