ARM: dts: msm: configure stm to use correct funnel on 8092

Modify DT entry of CoreSight STM to use correct ATB funnel
which is required to be enabled for STM tracing.

Change-Id: Ic418e5454e05ce3ee9a4103ebec745b8954a9468
Signed-off-by: Vignesh Radhakrishnan <vigneshr@codeaurora.org>