ARM: dts: msm: Enable pmic gpio13 so neutrino driver can toggle it in probe

Enables pmic gpio13 on msm8996 so that the neutrino driver can toggle it
during probe to bring the hardware out of reset. This is required for
suspend/resume when neutrino resx is disconnected from pcie_reset.

Change-Id: I21a8e556903756ed39abdde5a17e8b6d353c0504
Signed-off-by: Philippe Gravel <pgravel@codeaurora.org>