check: lint: ineffassign in qemu.go
check: lint: ineffassign in qemu.go

We were not checking the return err from addDeviceToBridge, which
can validly error out. lint/ineffassign picked this up.
Let's check the error return then...

Fixes: #650

Signed-off-by: Graham whaley <95f36e5ac6982f4574a5c449c37cf652e934d2b9@intel.com>

containers/virtcontainers,containers/virtcontainers