android: Fix library types in my recent MRs

Hi all,

This MR consolidates and addresses a number of mishaps I made in my recent ports, namely forgetting to create the relevant Libtool stubs and ensuring Android always gets a static build. The mishaps made it past CI, as the tutorials succeed when built, but fail only when running as no shared libraries are packaged into the APK.

Let me know if there are any questions or issues.