fvp_mps2.jinja2, fvp_mps3.jinja2: Bump --cpulimit to 240

There were still timeout cases midway thru tests with 180.

Signed-off-by: Paul Sokolovsky <paul.sokolovsky@linaro.org>
Change-Id: Ica05d2d9748559029f21e6faf3f83647daa52e9b
2 files changed