ARM: dts: msm: Fix CTI trig to GPIO mapping on SDM845

Fix the GPIO mapping for CTI trigout. The current GPIO pin is
repurposed for a different use case. Use GPIO pin 90 for
CTI trigout signal.

Change-Id: I5a834077125798525f5438f857b0828848f7a443
Signed-off-by: Satyajit Desai <sadesai@codeaurora.org>