Add Android.bp

Test: make
Bug: 152884384
Change-Id: I81576353b3ff0456afb8442c966758be0e26dba4

Android.bp

diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..eaba2a9
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1,16 @@
+// This file is generated by cargo2android.py.
+
+rust_library_host_rlib {
+    name: "libcexpr",
+    crate_name: "cexpr",
+    srcs: ["src/lib.rs"],
+    edition: "2018",
+    rlibs: [
+        "libnom",
+    ],
+}
+
+// dependent_library ["feature_list"]
+//   memchr-2.3.3 "std,use_std"
+//   nom-5.1.1 "alloc,std"
+//   version_check-0.9.1