tf-a-ci-gateway: Add USE_TUXSUITE_FVP job param, default to 0

To be passed down to tf-a-builder, to make FVP tests be submitted to
TuxSuite.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: I87bd1a6fdc5e1eac551d73ab3872abf8adfbec38
1 file changed