ARM: dts: qcom: Remove dependency on the skeleton dt file

Kona need not to use the skeleton dt file. The required nodes
can be added directly in the respective dt files.

Change-Id: I29d1c1f8340fccf50f06f76b13db2513e1ae5562
Signed-off-by: Venkata Narendra Kumar Gutta <vnkgutta@codeaurora.org>