ARM: dts: msm: Add voter clocks for ce clocks on MSM ZIRC

Both qcedev and qcrypto drivers need to vote on the ce
clocks. Therefore, create the voter clocks for them to
allow aggregation of their requests.

In addition, export the phandles for these ce clocks
to allow the clients use them.

Change-Id: I4f026dae7c802a96d10692be1bf74028156fb080
Signed-off-by: Tianyi Gou <tgou@codeaurora.org>