qcacld-3.0: WLAN logs cleanup

This is a qcacld-2.0 to qcacld-3.0 propagation.

1. Add log to print ssid, bssid, rssi, channel and country code
   while connecting to an AP.
2. Add log to print disconnect reason when disconnect request is
   received from user space.
3. Cleanup some of the logs moving it to appropriate log level
   which are showing up as ERROR level in bug report.

Change-Id: Id8ea69a14a18565c226f89a8a5e10be46741d76d
CRs-Fixed: 914336
diff --git a/core/hdd/src/wlan_hdd_ioctl.c b/core/hdd/src/wlan_hdd_ioctl.c
index 1e8db57..39192ef 100644
--- a/core/hdd/src/wlan_hdd_ioctl.c
+++ b/core/hdd/src/wlan_hdd_ioctl.c
@@ -5762,7 +5762,7 @@
 					adapter->mc_addr_list.addr[i],
 					sizeof(adapter->mc_addr_list.addr[i]));
 				filter->ulMulticastAddrCnt++;
-				hdd_err("%s RX filter : addr ="
+				hdd_info("%s RX filter : addr ="
 				    MAC_ADDRESS_STR,
 				    action ? "setting" : "clearing",
 				    MAC_ADDR_ARRAY(filter->multicastAddr[i]));
@@ -5772,7 +5772,7 @@
 		sme_8023_multicast_list(handle, adapter->sessionId, filter);
 		cdf_mem_free(filter);
 	} else {
-		hdd_err("mode %d mc_cnt %d",
+		hdd_info("mode %d mc_cnt %d",
 			adapter->device_mode, adapter->mc_addr_list.mc_cnt);
 	}