Use copy-rename-maven-plugin

The copy-maven-plugin is not compatible with Maven 3.1.1, so we need to
migrate. This plugin seems to do the right thing.

Change-Id: I256c4aebf44877fd76498b0c8df048605a439747
Signed-off-by: Robert Varga <rovarga@cisco.com>
(cherry picked from commit 758d4fc1d2c32f31aefef2cfe1bc8bbd68a0b566)