Create AAssetStreamAdaptor, for reading from AAssets

Bug: 135133301
Test: Ib84462ea5fa8a7779eaa44494775e182e52ecaca, once
      I4cf8bfb0aacfb8e22c3f9b1689bd614ed1253673 lands

AAssetStreamAdaptor lives in libjnigraphics, for use by AImageDecoder.

Change-Id: I4e2559c3c21c866d61fb431a0a1368150c7d39cb
diff --git a/native/graphics/jni/Android.bp b/native/graphics/jni/Android.bp
index 942eafd..d47de11 100644
--- a/native/graphics/jni/Android.bp
+++ b/native/graphics/jni/Android.bp
@@ -24,10 +24,15 @@
 
     // our source files
     //
-    srcs: ["bitmap.cpp"],
+    srcs: [
+        "bitmap.cpp",
+        "aassetstreamadaptor.cpp",
+    ],
 
     shared_libs: [
+        "libandroid",
         "libandroid_runtime",
+        "liblog",
     ],
 
     arch: {