mips: bmips: fix syscon-reboot nodes

Commit a23c4134 added the clock controller nodes, incorrectly changing the
syscon-reboot nodes addresses.

Fixes: a23c4134 ("MIPS: BMIPS: add clock controller nodes")
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>