build-qemu-robot-docker.sh: add rust to package
build-qemu-robot-docker.sh: add rust to package

The latest cryptography packages require rust

Change-Id: I71a1210ece3a151e978c2d934a1899d6effbe039
Signed-off-by: Andrew Geissler <f7919ac9f8ec0c3ffbc3f483da625c634fd31638@yahoo.com>

openbmc/openbmc-build-scripts,openbmc/openbmc-build-scripts