Revert "ARM: dts: msm: Disable PMX65 VBUS_DET on sdxlemur MTP-MBB and RCM-RC boards"

This change reverts commit be1f95bb.

Disabling VBUS_DET causes adb enumeration to fail as usb extcon node
need to be assigned an alternate device, such as pm7250b_pdphy. However,
to get this properly working, we need PMIC HW initialization to be done
in the bootloader stage. Hence reverting this until that is ready.

Change-Id: Ie8efaab512cc74a4d61f88021c6d87ef001d5aae