[autotest] fall back on sqlite3 if pysqlite2 doesn't import

sqlite3 is the equivalent module to pysqlite2, already installed in the
chroot.

BUG=chromium:221254
TEST=monitor_db_cleanup_test passes inside the chroot

Change-Id: If0a3ec198115b97a6eec909a96547ecbb688c34a
Reviewed-on: https://gerrit.chromium.org/gerrit/59622
Tested-by: Aviv Keshet <akeshet@chromium.org>
Reviewed-by: Alex Miller <milleral@chromium.org>
Commit-Queue: Aviv Keshet <akeshet@chromium.org>
1 file changed