ARM: dts: msm: check for WLAN dual band capability for MSM8909

Add qfuse register in WLAN device node to read dual band
capability. The WLAN dual band support vary from target
to target and to enable/disable dual band support for
a particular target the wcnss platform driver read
the wlan hardware qfuse register and export the dual band
capability info to wlan host driver to enable/disable this
dual band feature.

CRs-Fixed: 1115909
Change-Id: Ie778157ce92b7ea9ab8bdec3b42456143679a17c
Signed-off-by: Anand Kumar <anandkumar@codeaurora.org>
Signed-off-by: Sarada Prasanna Garnayak <sgarna@codeaurora.org>