enable variable substitution linaro_2001_release variable

In then OpenCI scenario, Linaro platform files are already in the
jenkins node, so enable variable substitution check for this
particular variable.

Signed-off-by: Leonardo Sandoval <leonardo.sandoval@linaro.org>
Change-Id: Ia29eae76f64973e7a8dde0d06e008f0e8dc1a76d
1 file changed