test: Make it possible to run rsa tests on hammer board

BRANCH=poppy
BUG=b:35647963
BUG=b:77608104
TEST=make run-rsa run-rsa3
TEST=make BOARD=hammer test-rsa3, test on board

Change-Id: Id4bd8d5f550dbc6569d88ced114849b3b6411b2f
Signed-off-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1071410
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
3 files changed