arm: dts: msm: Add device tree file for 8996v2.0 FLUID

Create a dedicated DTS file for describing the hardware
devices found on the MSM8996v2.0 FLUID platform, and allow
the existing msm8996-v2-fluid.dts file to implicitly apply
to MSM8996v2.1 hardware.

Change-Id: I57b0375515f46d1c699b4c909506b25eedb67dc5
Signed-off-by: Se Wang (Patrick) Oh <sewango@codeaurora.org>