Comment 3 for bug 1177193

Its the same problem of bug 1090591

I reverted "kernel/sys.c: call disable_nonboot_cpus() in kernel_restart()" fixing this before and "PM / reboot: call syscore_shutdown() after disable_nonboot_cpus()" is introduced in Linux 3.5.7.11 for solving a reboot problem on MIPS platform and cause first revert patch to drop because of conflict.

Since armadaxp kernel delta is based on the original design of cpu reboot function, I believe the best way is to revert these two patches.