cpufreq: interactive: Use wake_up_process_no_notif to wake up tasks

Scheduler could send a notification to governor each time a task wakes
up. If governor wakes up another task as a response to such a
notification, it could result in endless recursive notifications.

Use wake_up_process_no_notif to ensure scheduler won't send another
notification for speedchange task woken up by the governor.

Change-Id: I697affcbdf79e2ad0cfe843eb880d304960682f4
Signed-off-by: Junjie Wu <junjiew@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>