ARM: dts: msm: Remove UFS card support on Kona platforms

UFS card will not be supported on Kona, remove it from device tree.
In addition, remove the storage card detect GPIO based ExtCon used by
UFS card and SD card. Meanwhile, change the card detect GPIO used by
ExtCon back as SD card's detect GPIO.

Change-Id: I5a3f56b0a01c0be503de59e841864fe958db81cd