[androidkit] Register native methods explicitly

Use RegisterNatives() to bind native methods, instead of relying on
dynamic linker naming conventions.

Change-Id: I602f2efe73e3b9c3c7dfaf7af2307dcfb4cd935e
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/396016
Commit-Queue: Florin Malita <fmalita@google.com>
Reviewed-by: Derek Sollenberger <djsollen@google.com>
Reviewed-by: Jorge Betancourt <jmbetancourt@google.com>
4 files changed