ARM: dts: msm: Don't defer regulator disable for QCS605

Remove property qcom,deferred-regulator-disable-delay for
GPU SMMU to make sure regulator get disabled immediately.
This is needed to avoid kgsl from keeping regulator enable
during kgsl release even if no map-unmap smmu transactions
is pending.

Change-Id: I16057e2b76a2d0503d737d92e180bcdfd84e9999
Signed-off-by: Amit Kushwaha <kushwaha@codeaurora.org>