ARM: dts: msm: leverage msm8937 coresight dts for msm8917

Coresight components are very similar between msm8937 and
msm8917.  Coresight function has been well tested on
msm8937.  Include msm8937 coresight device tree in msm8917
coresight device tree and remove unused parts.

Change-Id: I05b50c950c792b8cf1bfec6a6a7520cf910b82c2
Signed-off-by: Tingwei Zhang <tingwei@codeaurora.org>