ARM: dts: msm: change wlan_en gpio of sdxhedgehog PCIe card

Platform sdxhedgehog supports PCIe and SDIO interface wlan chip,
wlan enable pin for PCIe type card is gpio 74, so adjust it in
dts cnss node.

Change-Id: I82880748d5909b30be055a497038aaba704251cc
CRs-fixed: 1111856
Signed-off-by: Kai Liu <kaliu@codeaurora.org>