Bug 494234 - Change org.apache.derby to import-package in performance

The org.apache.derby.jdbc package can come from either
org.apache.derby.core plugin (build.eclipse.org) or org.apache.derby
(Orbit). By changing the dependency from Require-bundle to
import-package, either one can work.

Change-Id: Iad57cacf16d29abb136829a04a8704e31e0eb097
Signed-off-by: Marc-Andre Laperle <marc-andre.laperle@ericsson.com>
(cherry picked from commit 35e6d7fba0103b6e1c9ffb6b6bff9a34392f3d3e)