ARM: dts: mdm: Add initial device node support for MDM9607

Add snapshot of initial set of device tree files, pinctrl
driver and config options required to build MDM9607 from
msm-3.18 'commit fc7eae29037d ("Merge soc: qcom:
bgspi: soft reset Blackghost on failure to resume")'.

Change-Id: Icbeb61b062c9b2b2fbbe4c2fb9fd0edad0efcac0
Signed-off-by: Abinaya P <abinayap@codeaurora.org>