openrisc: Make cpu_relax() invoke barrier()
openrisc: Make cpu_relax() invoke barrier()

Make cpu_relax() invoke barrier() to be the same as other arches.

Signed-off-by: Vladimir Murzin <5f288aaedfa821c802c94cfb9a5501a50f315eee@gmail.com>
Signed-off-by: Jonas Bonn <35a2c6fae61f8077aab61faa4019722abf05093c@southpole.se>

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