ARM: dts: msm: PPS enablement for 9x40

GPS QDR feature has a dependency on Linux PPS
which is enabled using gpio 38 pin

Change-Id: Ibc0b5be5f401635357a302bf494d435e7bc9c053
CRs-fixed: 1012438
Signed-off-by: Naresh Munagala <nareshm@codeaurora.org>