Clear IEOB interrupt only for channels that have
IEOB interrupt enabled. This is needed to make sure IEOB interrupt
is not missed after switching from polling to interrupt.
CRs-Fixed: 1014388
Change-Id: Ia6484ed03d9508b827f8c7e4dadb84c14e306bd9 Acked-by: Ady Abraham <adya@qti.qualcomm.com> Signed-off-by: Skylar Chang <chiaweic@codeaurora.org>