ARM: dts: qcom-msm8960: Platform fixes

Various fixes that are or should be sent upstream.

Signed-off-by: Bjorn Andersson <bjorn.andersson@sonymobile.com>
ARM: defconfig: Sony Xperia devices
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ARM: dts: sony: lagan: Introduce the Lagan development board
ARM: dts: sony: rhine: Introduce the Rhine development board