[POWERPC] maple: Use RTAS for reboot and halt
[POWERPC] maple: Use RTAS for reboot and halt

On maple, use the RTAS "system-reboot" and "power-off" methods if they
are available.

Signed-off-by: Nathan Lynch <e04de97a81056a5c7ecb3646886e1cc27299320d@pobox.com>
Signed-off-by: Paul Mackerras <19a0ba370c443ba08d20b5061586430ab449ee8c@samba.org>

TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,TeamVee-Kanas/android_kernel_samsung_kanas,KristFoundation/Programs