Wlan: move unnecessary error logs to warning

Remove frequently seen unnecessary error logs to warning and info.

Change-Id: Idbeed4f66cf89e161db0674a261e701c77ed59c8
CRs-Fixed: 971507
diff --git a/CORE/HDD/src/wlan_hdd_cfg80211.c b/CORE/HDD/src/wlan_hdd_cfg80211.c
index d775ae1..0a53e43 100644
--- a/CORE/HDD/src/wlan_hdd_cfg80211.c
+++ b/CORE/HDD/src/wlan_hdd_cfg80211.c
@@ -1728,7 +1728,7 @@
     if ( (TRUE != pHddCtx->cfg_ini->fEnableLLStats) ||
          (TRUE != sme_IsFeatureSupportedByFW(LINK_LAYER_STATS_MEAS)))
     {
-        hddLog(VOS_TRACE_LEVEL_ERROR,
+        hddLog(VOS_TRACE_LEVEL_WARN,
                FL("Link Layer Statistics not supported by Firmware"));
         return -EINVAL;
     }