ARM: dt: msm: add more wsa881x devices for MSM8952 targets

MSM8952 based targets supports different versions of wsa881x
chipset. Add a list of all additional devices which might
be supported for the target. Create a separate DTSI file
to define the list of different wsa881x devices supported.

Change-Id: I6ef1bc526271fa4ae0ec0b22acb6168cfe29a2ae
Signed-off-by: Venkata Narendra Kumar Gutta <vgutta@codeaurora.org>