ARM: dts: msm: Enable cnss_pci and setup gpios for sdxhedgehog

Enable the cnss_pci driver for WLAN and setup the gpios
for vreg and enable on sdxhedgehog devices.

Change-Id: I2b5d7154e3f2161dec88f6a074d136f888de9484
Signed-off-by: Gustavo Solaira <gustavos@codeaurora.org>