qcacld-3.0: Fix roam failed for wrong RSO STOP scan mode

If disassoc frame is sent from AP side, not DUT STA side,
roam state change with REASON_DISCONNECTED, then ROAM STOP
reason becomes REASON_SME_ISSUED,  then scan mode is set as
WMI_ROAM_SCAN_MODE_ROAMOFFLOAD 4 for WMI_ROAM_SCAN_MODE, not 0.

Change-Id: I483b2117f1ae972e0d54ca4b1d3b8854e1695bf1
CRs-Fixed: 2622779
1 file changed