ARM: dts: msm: specify VDD_GFX CPR configurations for msm8996v3

Specify the VDD_GFX CPR configurations which are used on
MSM8996v3 chips.  This consists of an expanded set of frequencies
supported and adjustments reset to 0 uV.  Also, target quotient
and RO scaling factor values must be set to 0 until final values
are determined via characterization.  Disable CPR closed-loop
operation since the target quotients are not available.

Override the new values in the MSM8996v2 device tree file so that
the CPR configurations of this chip revision remain unchanged.

Change-Id: Ifa94d70f39b41f752192158c91574829dd5d4c17
Signed-off-by: David Collins <collinsd@codeaurora.org>