oeqa: reproducible: Add more logging

The reproducible build tests can take a long time, so having more
logging messages at various points in the build can help debug where the
build is taking a long time.

Signed-off-by: Joshua Watt <JPEWhacker@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 6b792afe)
Signed-off-by: Steve Sakoman <steve@sakoman.com>