powerpc: Convert fsl_rstcr_restart to a reset handler

Convert fsl_rstcr_restart into a function to be registered with
register_reset_handler().

Signed-off-by: Andrey Smirnov <andrew.smirnov@gmail.com>
[scottwood: Converted mvme7100 as well]
Signed-off-by: Scott Wood <oss@buserror.net>

arch/powerpc/platforms/85xx/sbc8548.c

@@ -130,7 +130,6 @@ define_machine(sbc8548) {
 	.init_IRQ	= sbc8548_pic_init,
 	.show_cpuinfo	= sbc8548_show_cpuinfo,
 	.get_irq	= mpic_get_irq,
-	.restart	= fsl_rstcr_restart,
 #ifdef CONFIG_PCI
 	.pcibios_fixup_bus	= fsl_pcibios_fixup_bus,
 	.pcibios_fixup_phb      = fsl_pcibios_fixup_phb,