task_profiles.json: add taskprofile for SurfaceFlinger

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 and boot
Signed-off-by: Wei Wang <wvw@google.com>
Change-Id: Ib313fd67c6ccd701109c5683d8dbab9ecd1580d8