ANDROID: sched: cpufreq_schedutil: add sugov tracepoints

Add vendor hook tracepoints to track when cpu util gets
updated and when freq is choosen.

Bug: 174488007
Test: Enable sugov_next_freq and sugov_util_update
      and check the trace file.
Signed-off-by: Saravana Kannan <skannan@codeaurora.org>
Signed-off-by: Rohit Gupta <rohgup@codeaurora.org>
[avilaj@codeaurora.org: Fix some conflicts introduced by reordering this patch]
Signed-off-by: Jonathan Avila <avilaj@codeaurora.org>
Signed-off-by: Jimmy Shiu <jimmyshiu@google.com>
Link: https://partner-android.googlesource.com/kernel/private/msm-google/+/410a1fce79b4


Signed-off-by: Jimmy Shiu <jimmyshiu@google.com>
Change-Id: Ibb22fd0337a2539820a05b1e6b54b09aeaebd040