ARM: dts: msm: Disable GPU Coresight for SDM845

Remove GPU coresight properties for SDM845 so that the GPU Coresight
funnel node is not available on debugfs. This is to avoid a scenario
when a user might write to the GPU Coresight funnel node while the
GPU is off.

Change-Id: I9c0943797d8e1b74959ee6ca49bbb5e83a1ee613
Signed-off-by: Lokesh Batra <lbatra@codeaurora.org>