ARM: dts: msm: configure gpio on cti map and unmap on 8084

Modify CoreSight CTI device tree entry to be able to configure
gpio using pinctrl framework only when the corresponding CTI
is mapped and unmapped for a specific trigin or trigout. This
avoids potential power impact when the CTI is not in use.

Change-Id: I3fda5738f3b369a62703cdedf6a3eb59d6af6b37
Signed-off-by: Aparna Das <adas@codeaurora.org>