spapr: Don't use weird units for MIN_RMA_SLOF

MIN_RMA_SLOF records the minimum about of RMA that the SLOF firmware
requires.  It lets us give a meaningful error if the RMA ends up too small,
rather than just letting SLOF crash.

It's currently stored as a number of megabytes, which is strange for global
constants.  Move that megabyte scaling into the definition of the constant
like most other things use.

Change from M to MiB in the associated message while we're at it.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Reviewed-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
1 file changed