ARM: dts: msm: Change second radio WLAN_EN gpio

There is conflict on the gpio 116 with USB part. Change to 109 for sku1
boards, change to 47 for sku4 boards. Revert SD card settings in main dtsi
for sdhc_2 slot.

Change-Id: I7c165f274244150404a371047602ab3d47567283
CRs-Fixed: 2555123
Signed-off-by: Hangtian Zhu <hangtian@codeaurora.org>