tools/testing/selftests/powerpc: Add Anton's null_syscall benchmark to the selftests

[Michael Ellerman]

On Tue, 2016-27-09 at 14:10:16 UTC, Rui Teng wrote:
> From: Anton Blanchard <anton at au.ibm.com>
> 
> Pull in a version of Anton's null_syscall benchmark:
> http://ozlabs.org/~anton/junkcode/null_syscall.c
> Into tools/testing/selftests/powerpc/benchmarks.
> 
> Suggested-by: Michael Ellerman <mpe at ellerman.id.au>
> Signed-off-by: Anton Blanchard <anton at au.ibm.com>
> Signed-off-by: Rui Teng <rui.teng at linux.vnet.ibm.com>

Applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/d8db9bc55a316d97d0acdf6ccc9f43

cheers