ARM: dts: msm: enable PCIe EP mode and disable PCIe RC and WiFi for

MDM9650

Enable PCIe EP mode as well as disable PCIe RC mode and WiFi
for MDM9650.

Change-Id: Ic0d4dc36426124f5d9a98676d519d9d9cd0d5052
Signed-off-by: Rama Krishna Phani A <rphani@codeaurora.org>