lib/berkeley-db-1.xx: Update to upstream which builds for uPy.

Applied "official" patches and fixed various warnings when built with uPy's compile options.

lib/berkeley-db-1.xx: Update to upstream which builds for uPy.
Applied "official" patches and fixed various warnings when built with uPy's compile options.
a1eab98e · Paul Sokolovsky · 337111ba · 7b31cae3 · 6dc9d673 · 7b31cae3
Commit a1eab98e authored Jun 15, 2016 by Paul Sokolovsky
--- a/berkeley-db-1.xx @ 7b31cae3
+++ b/berkeley-db-1.xx @ 7b31cae3
-Subproject commit 6dc9d673a4a536341b5ba770809b8e1603819497
+Subproject commit 7b31cae3c0892a7fca2089cb0354a4920c98c413