QB_MEM is now set via the qemuboot-xen-defaults bbclass and has the
better default value of 512MB, which fixes some test failures observed
when using the lower previous default value of 400MB.
The SYSLINUX_XEN_ARGS method of setting the intended dom0 memory level
did not take effect in practice, so remove it.
Signed-off-by: Christopher Clark <christopher.clark@starlab.io>
Signed-off-by: Bruce Ashfield <bruce.ashfield@gmail.com>
12fb6aaffe