If DBS is disabled from INI then driver just bails out
in wlan_hdd_update_dbs_scan_and_fw_mode_config() API and never report
it to FW. This creates a confusion when DBS is disable INI but our HW
is capable of doing DBS, i.e. driver thinks that DBS disabled
but FW thinks that DBS is enabled.
Provide a fix that driver should report exact INI setting to FW.
This issue got introduced as part of regression caused by:
Iec2ef7e77e91f332028904c319d24e1ed134306d
ROME platform doesn't support any DBS related commands in FW,
so if driver sends wmi command with dual_mac_config with all params
set to 0 then FW wouldn't respond back and driver would timeout on
waiting for response. This was the original issue for which
Iec2ef7e77e91f332028904c319d24e1ed134306d was added.
Make sure current solution doesn't break backward compatibility.
Add a check to make sure FW supports DBS to eliminate
ROME vs NON-ROME platform.
CRs-Fixed: 2361628
Change-Id: I8a3b795b20e82391ae5d5c86d1e7d814d103ce64
e64b17e7f0