wlan: Replace __FUNCTION__ argument with __func__ in the wlan driver

The fix is to not use the gcc specific __FUNCTION__ to capture function
name; but use __func__  which is a C-99 standard identifier

Change-Id: Ie36f1bb87a3a4a51ec177ab5b6a253e279401e88
CR-Fixed: NA
diff --git a/CORE/HDD/src/wlan_hdd_wowl.c b/CORE/HDD/src/wlan_hdd_wowl.c
index f0b8f91..fc5fa01 100644
--- a/CORE/HDD/src/wlan_hdd_wowl.c
+++ b/CORE/HDD/src/wlan_hdd_wowl.c
@@ -76,7 +76,7 @@
 static void hdd_wowl_callback( void *pContext, eHalStatus halStatus )
 {
   VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_INFO, 
-    "%s: Return code = (%ld)\n", __FUNCTION__, halStatus );
+    "%s: Return code = (%ld)\n", __func__, halStatus );
 }
 
 static void dump_hdd_wowl_ptrn(tSirWowlAddBcastPtrn *ptrn)
@@ -139,7 +139,7 @@
     if(first_empty_slot == -1)
     {
       VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, 
-          "%s: Cannot add anymore patterns. No free slot!", __FUNCTION__);
+          "%s: Cannot add anymore patterns. No free slot!", __func__);
       return VOS_FALSE;
     }
 
@@ -163,7 +163,7 @@
        ptrn[5] != WOWL_INTRA_PTRN_TOKENIZER)
     {
       VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, 
-          "%s: Malformed pattern string. Skip!\n", __FUNCTION__);
+          "%s: Malformed pattern string. Skip!\n", __func__);
       ptrn += len; 
       goto next_ptrn;
     }
@@ -180,7 +180,7 @@
        localPattern.ucPatternMaskSize > WOWL_PTRN_MASK_MAX_SIZE)
     {
       VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, 
-          "%s: Invalid length specified. Skip!\n", __FUNCTION__);
+          "%s: Invalid length specified. Skip!\n", __func__);
       ptrn += len; 
       goto next_ptrn;
     }
@@ -190,7 +190,7 @@
     if(offset >= len || ptrn[offset] != WOWL_INTRA_PTRN_TOKENIZER) 
     {
       VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, 
-          "%s: Malformed pattern string..skip!\n", __FUNCTION__);
+          "%s: Malformed pattern string..skip!\n", __func__);
       ptrn += len; 
       goto next_ptrn;
     }
@@ -200,7 +200,7 @@
     if(offset+1 != len) //offset begins with 0
     {
       VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, 
-          "%s: Malformed pattern string...skip!\n", __FUNCTION__);
+          "%s: Malformed pattern string...skip!\n", __func__);
       ptrn += len; 
       goto next_ptrn;
     }
@@ -233,7 +233,7 @@
     if(g_hdd_wowl_ptrns[first_empty_slot] == NULL) 
     {
       VOS_TRACE( VOS_MODULE_ID_HDD, VOS_TRACE_LEVEL_ERROR, 
-          "%s: kmalloc failure", __FUNCTION__);
+          "%s: kmalloc failure", __func__);
       return VOS_FALSE;
     }