This is usual to reference PowerPC 64 bits architectures as 'ppc64',
and let 'powerpc' define PowerPC 32 bits ones.
Acked-by: Cyrill Gorcunov <gorcunov@gmail.com>
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Pavel Emelyanov <xemul@virtuozzo.com>