In video mode for fps greater than 60, perf cpu dma latency votes
are not removed during idle fallback. Made changes to remove and
add the perf cpu dma latency votes during idle fallback and idle
exit scenarios respectively.
Change-Id: I8dffc743bd48c96a6022935f71057a0223d9696e
Signed-off-by: Andhavarapu Karthik <kartkart@codeaurora.org>