qcacld-3.0: Add ini for roam score algorithm selection

CFG_VENDOR_ROAM_SCORE_ALGORITHM is added to specify the
preferred roam score algorithm.
With value 1, the new V2 roam score algorithm will be used.
With this roam score Algorithm, AP score will be calculated
based on below equation:
AP Score = (RSSIfactor * rssiweight(0.65)) +
		(CUfactor * cuweight(0.35))

This algorithm value will be sent to firmware over the
WMI_AP_PROFILE command.

Change-Id: I5e7857108a9623fdf3e698cb842dbc22c21f61a1
CRs-Fixed: 2513571
4 files changed