Generate apex_available from c2a instead of a patch

Test: Run c2a
Test: Build
Change-Id: I7b66c50dac35b73634324d2555259e997a7a6644
diff --git a/cargo2android.json b/cargo2android.json
new file mode 100644
index 0000000..4e40fcb
--- /dev/null
+++ b/cargo2android.json
@@ -0,0 +1,11 @@
+{
+  "apex-available": [
+    "//apex_available:platform",
+    "com.android.virt"
+  ],
+  "dependencies": true,
+  "device": true,
+  "features": "default,derive",
+  "patch": "patches/Android.bp.patch",
+  "run": true
+}
\ No newline at end of file