ARM: dts: msm: change PCIe0 WAKE to pull-up for sdm845

Update PCIe0 WAKE GPIO default configuration to be pull-up
for sdm845 . Keep WAKE pull-up to avoid false WAKE
assertion by endpoint.

Change-Id: I229c21e2d34772f2217d1f7071941f11ed48a614
Signed-off-by: Tony Truong <truong@codeaurora.org>