SurfaceFlinger: add custom taskprofiles for SF threads

In some platforms, setting a different cpuset (or remove it) and/or
uclamp setting is beneficial to both performance and power. Adding 2
separate profiles for vendor to override surfaceflinger scheduling
policies.

Bug: 170507315
Test: build
Signed-off-by: Wei Wang <wvw@google.com>
Change-Id: I6746e768fbf850202f2008f5e2131326e3a8f6a8