In certain configs which don't use coresight, the clocks are left on, leading to power regressions. Add a driver which can disable them. Bug: 170753932 Signed-off-by: J. Avila <elavila@google.com> Signed-off-by: Yabin Cui <yabinc@google.com> Change-Id: I6f82d39717e4d6754ecabd1fcf20b7502b948b8d