qcacld-3.0: Rename ENTER/EXIT macros (part 1)

In order to better align with the rest of the driver, rename the
following macros:
 * ENTER -> hdd_enter
 * ENTER_DEV -> hdd_enter_dev
 * EXIT -> hdd_exit

For part 1, introduce the new macros

Change-Id: I82fed51ed676041352acfeff20923c58ade4a826
CRs-Fixed: 2205830

core/hdd/inc/wlan_hdd_main.h

@@ -265,10 +265,13 @@
 #define hdd_debug(format, args...) \
 		hdd_logfl(QDF_TRACE_LEVEL_DEBUG, format, ## args)
 
-#define ENTER() hdd_logfl(QDF_TRACE_LEVEL_INFO_LOW, "enter")
-#define ENTER_DEV(dev) \
-		hdd_logfl(QDF_TRACE_LEVEL_INFO_LOW, "enter(%s)", (dev)->name)
-#define EXIT() hdd_logfl(QDF_TRACE_LEVEL_INFO_LOW, "exit")
+#define hdd_enter() hdd_debug("enter")
+#define hdd_enter_dev(dev) hdd_debug("enter(%s)", (dev)->name)
+#define hdd_exit() hdd_debug("exit")
+
+#define ENTER() hdd_enter()
+#define ENTER_DEV(dev) hdd_enter_dev(dev)
+#define EXIT() hdd_exit()
 
 #define WLAN_HDD_GET_PRIV_PTR(__dev__) \
 		(struct hdd_adapter *)(netdev_priv((__dev__)))