power: bump default example implementation to version 2

Bug: 177492680
Test: Build
Signed-off-by: Wei Wang <wvw@google.com>
Change-Id: If423a7d0fb800a9528336245c7dbf42689080f0b
diff --git a/compatibility_matrices/compatibility_matrix.current.xml b/compatibility_matrices/compatibility_matrix.current.xml
index c656af2..bb22974 100644
--- a/compatibility_matrices/compatibility_matrix.current.xml
+++ b/compatibility_matrices/compatibility_matrix.current.xml
@@ -419,7 +419,7 @@
     </hal>
     <hal format="aidl" optional="false">
         <name>android.hardware.power</name>
-        <version>1</version>
+        <version>1-2</version>
         <interface>
             <name>IPower</name>
             <instance>default</instance>