qcacmn: Add vdev param to configure NAN feature bitmap to firmware

Define a new vdev param to set corresponding bit to enable/disable
a particular NAN feature.
Currently, Framework configures NAN DW as 4 seconds when the
device is in sync role and the screen is off. But customers might
want this to be 512ms always irrespective of screen off/on.
Send the vdev param on NAN vdev by setting the "bit 0" to 0 to
indicate firmware to ignore framework configured DW value and
consider the firmware default value.

Change-Id: Idcbdae94bd6a96fbbe15ec103a0aa558cdfcd572
CRs-Fixed: 2721980