AAPT2: Convert binary ResTable_config to proto

Test: make aapt2_tests
Change-Id: I8641f13ce41cd58ac8bc3da31c4e15a7b3f06092
diff --git a/tools/aapt2/Android.bp b/tools/aapt2/Android.bp
index 43918da..f0ebf10 100644
--- a/tools/aapt2/Android.bp
+++ b/tools/aapt2/Android.bp
@@ -139,6 +139,7 @@
         "xml/XmlDom.cpp",
         "xml/XmlPullParser.cpp",
         "xml/XmlUtil.cpp",
+        "Configuration.proto",
         "Resources.proto",
         "ResourcesInternal.proto",
     ],