Revert "mark more hals as optional in frozen matrix."

This reverts commit cc4ed2ff3f5735f1d79578621deffc7531dedc9d.

Reason for revert: This change is a workaround. Here's a fix aosp/1473437

Change-Id: I39a76660f11c0a8ca5979bbee4983c13608ff4fd
diff --git a/vintfdata/frozen/5.xml b/vintfdata/frozen/5.xml
index 8cccb47..9c52d07 100644
--- a/vintfdata/frozen/5.xml
+++ b/vintfdata/frozen/5.xml
@@ -31,8 +31,7 @@
             <instance>default</instance>
         </interface>
     </hal>
-    <!-- TODO(b/171424919) set to required once trusty installs it. -->
-    <hal format="hidl" optional="true">
+    <hal format="hidl" optional="false">
         <name>android.frameworks.stats</name>
         <version>1.0</version>
         <interface>
@@ -40,8 +39,7 @@
             <instance>default</instance>
         </interface>
     </hal>
-    <!-- TODO(b/171424919) set to required once trusty installs it. -->
-    <hal format="hidl" optional="true">
+    <hal format="hidl" optional="false">
         <name>android.hardware.media.c2</name>
         <version>1.1</version>
         <interface>
@@ -89,8 +87,7 @@
             <instance>default</instance>
         </interface>
     </hal>
-    <!-- TODO(b/171424919) set to required once trusty installs it. -->
-    <hal format="hidl" optional="true">
+    <hal format="hidl" optional="false">
         <name>android.system.suspend</name>
         <version>1.0</version>
         <interface>