resource: correct reallocate_resource() documentation

resource: correct reallocate_resource() documentation

reallocate_resource() documentation claims constraint is about "the size
and alignment" but the size is provided in another parameter.  Instead of
size, constraint has the allowed memory range (min, max) so change the
wording to reflect that.

Link: https://lkml.kernel.org/r/20241009125751.8090-1-ilpo.jarvinen@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>