Add Android.bp for libc/libm/libdl

Change-Id: I3537363849ba1244348996ff17c5ace1b95dbeee
diff --git a/Android.bp b/Android.bp
new file mode 100644
index 0000000..b44c296
--- /dev/null
+++ b/Android.bp
@@ -0,0 +1 @@
+subdirs = ["*"]