run-qemu-robot-test: Use --rm for docker run

When the test runs boot-qemu-test.exp with docker, it does not use --rm
so the container remains after the test exits.

Add --rm so that the container is removed automatically.

Signed-off-by: Lei YU <yulei.sh@bytedance.com>
Change-Id: Ie9748bf5fe029c26cd4ec2ca931b44169906bef4
1 file changed