dockerfile-template: Copy UBL license files to /root

We received a long-term UBL license file from Romain Castell of Arm and
intend to include it in the FVP docker images.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: I21d8ba415307531a489e372d6e23a7210e418fb9
diff --git a/dockerfile-template b/dockerfile-template
index 505a7b8..44b78bf 100644
--- a/dockerfile-template
+++ b/dockerfile-template
@@ -27,6 +27,7 @@
 COPY setup-sshd /usr/sbin/setup-sshd
 COPY stdout-flush-wrapper.sh /usr/bin/stdout-flush-wrapper.sh
 COPY stdout-flush-wrapper-debug.sh /usr/bin/stdout-flush-wrapper-debug.sh
+COPY swskt-linaro-root*.lic /root/
 
 # Add the FVP model tarball
 # NOTE: some tarballs contain an installer script others don't, so it may be the case