msm: ipa: holb mitigation mechanism

Add new mechanism to control holb mitigation from uc.
Whenever BAM-BAM producer pipe is disconnected
notify uc to stop monitoring the pipe. Whenever pipe
is connected notify uc to start monitoring the pipe
for holb mitigation.

Change-Id: Ic3884a4b42629129f34e00b021ca6dd70869952c
Acked-by: Chaitanya Pratapa <cpratapa@qti.qulcomm.com>
Signed-off-by: Ravinder Konka <rkonka@codeaurora.org>