qcacld-3.0: Featurize wlan roam debug

Add feature flag for wlan roam debug log to compile out in mission mode.

Change-Id: I52e41f5977b8fba12e70a24cf96368d8e019df5f
CRs-Fixed: 2241252

configs/genoa.snoc.debug_defconfig

@@ -99,6 +99,7 @@ CONFIG_FEATURE_FW_LOG_PARSING := y
 CONFIG_PTT_SOCK_SVC_ENABLE := y
 CONFIG_WMI_INTERFACE_EVENT_LOGGING := y
 CONFIG_WLAN_FEATURE_LINK_LAYER_STATS := y
+CONFIG_FEATURE_ROAM_DEBUG := y
 
 CONFIG_WLAN_LOG_FATAL := y
 CONFIG_WLAN_LOG_ERROR := y