run qemu container with root permission
run qemu container with root permission

The QEMU application requires root access to utilize the standard ports.
These ports are not open outside of the docker subsystem (i.e. no
command line -p option) so the impact should be minimal.

Tested:
- Verified with this change that the run-qemu-robot-test.sh could
  complete successfully on CI infrastructure

Change-Id: I0e73c416af3bbdf6cfb17607097f974f5236d87e
Signed-off-by: Andrew Geissler <f7919ac9f8ec0c3ffbc3f483da625c634fd31638@yahoo.com>

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