fwk compat mat: add health@2.0

framework & storaged talks to health@2.0 HAL prior to healthd.

If the vendor service for health@2.0 is missing, framework / storaged
falls back and talks to healthd. Hence health@2.0 HAL is optional.

A follow-up change is needed to require launch devices to launch
with health@2.0 (i.e. current.xml says optional=false).

Bug: 62229583
Test: builds (assemble_vintf passes)

Change-Id: I49caca2b683e928f25e6f3cac2e2a8396b50f46a
diff --git a/compatibility_matrix.current.xml b/compatibility_matrix.current.xml
index 6692de0..940588f 100644
--- a/compatibility_matrix.current.xml
+++ b/compatibility_matrix.current.xml
@@ -164,6 +164,14 @@
         </interface>
     </hal>
     <hal format="hidl" optional="true">
+        <name>android.hardware.health</name>
+        <version>2.0</version>
+        <interface>
+            <name>IHealth</name>
+            <instance>default</instance>
+        </interface>
+    </hal>
+    <hal format="hidl" optional="true">
         <name>android.hardware.ir</name>
         <version>1.0</version>
     </hal>