bionic-amd64-tf-a-build: add OpenSSL compatibility for v1.0.1

This patch is to make the installation of OpenSSL compatible
with v1.0.1, since the last patch caused some problems in CI
that did not show up in staging CI.

Signed-off-by: Juan Pablo Conde <juanpablo.conde@arm.com>
Change-Id: Ib93afbfcd80465be9f4635ca06fb851cdccea088
1 file changed