There is no good reason to loop 10 times on the test since the profile
optimisation won't change between runs, we don't need/want a statistical
average. This is just burning cpu cycles, just make 1 run.
(From OE-Core rev: 78af3a3e6865cac8bc9fd881af6158ce5e21d4e5)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>