ARM: dts: msm: Prevent L2PC from occurring when Venus is active on 8917

The occurrence of L2 power collapse actually increases power when Venus
is active. As set "qcom,pm-qos-latency-us" higher than the normal
cluster latencies to prevent the power collapse from occurring.
Add 8917 recommended pm-qos value.

Change-Id: Ie2f2105851d61620e7247d2a3b53d8d7ba2ef35b
CRs-Fixed: 995426
Signed-off-by: Srinu Gorle <sgorle@codeaurora.org>