powerpc/powermac: Hotplug /sys entries are missing

On Wed, 18 Feb 2009 22:18:21 +0100
Giuliano Pochini <pochini@shiny.it> wrote:

Since 2.6.28, /sys/devices/system/cpu/cpu*/online don't exist anymore
on 32-bit PowerMacs due to change in the generic powerpc code.

Signed-off-by: Giuliano Pochini <pochini@shiny.it>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>