bamboo, sam460ex: Tidy up error message for unsupported RAM size
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$ ppc-softmmu/qemu-system-ppc -M sam460ex -m 4096
qemu-system-ppc: Max 1 banks of 2048 ,1024 ,512 ,256 ,128 ,64 ,32 MB DIMM/bank supported
qemu-system-ppc: Possible valid RAM size: 2048
to
qemu-system-ppc: at most 1 bank of 2048, 1024, 512, 256, 128, 64, 32 MiB each supported
Possible valid RAM size: 1024 MiB
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <
20200422134815.1584-4-armbru@redhat.com>
Reviewed-by: BALATON Zoltan <balaton@eik.bme.hu>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>