Generate apex_available from c2a instead of a patch

Test: Run c2a
Test: Build
Change-Id: I0563e32960c71f3ebe42b3151d344b0592b150d9
diff --git a/cargo2android.json b/cargo2android.json
new file mode 100644
index 0000000..42b7833
--- /dev/null
+++ b/cargo2android.json
@@ -0,0 +1,9 @@
+{
+  "apex-available": [
+    "//apex_available:platform",
+    "com.android.virt"
+  ],
+  "dependencies": true,
+  "device": true,
+  "run": true
+}
\ No newline at end of file