sched/cpufreq: Don't pass flags to sugov_set_iowait_boost()

sched/cpufreq: Don't pass flags to sugov_set_iowait_boost()

We are already passing sg_cpu as argument to sugov_set_iowait_boost()
helper and the same can be used to retrieve the flags value. Get rid of
the redundant argument.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rafael Wysocki <rjw@rjwysocki.net>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Cc: dietmar.eggemann@arm.com
Cc: joelaf@google.com
Cc: juri.lelli@redhat.com
Cc: morten.rasmussen@arm.com
Cc: tkjos@android.com
Link: http://lkml.kernel.org/r/4ec5562b1a87e146ebab11fb5dde1ca9c763a7fb.1513158452.git.viresh.kumar@linaro.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>