Bluetooth: Enable per-module dynamic debug messages

With the introduction of CONFIG_DYNAMIC_PRINTK_DEBUG it is possible to
allow debugging without having to recompile the kernel. This patch turns
all BT_DBG() calls into pr_debug() to support dynamic debug messages.

As a side effect all CONFIG_BT_*_DEBUG statements are now removed and
some broken debug entries have been fixed.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
diff --git a/include/net/bluetooth/bluetooth.h b/include/net/bluetooth/bluetooth.h
index 996d12d..a04f846 100644
--- a/include/net/bluetooth/bluetooth.h
+++ b/include/net/bluetooth/bluetooth.h
@@ -54,8 +54,8 @@
 #define SOL_RFCOMM	18
 
 #define BT_INFO(fmt, arg...) printk(KERN_INFO "Bluetooth: " fmt "\n" , ## arg)
-#define BT_DBG(fmt, arg...)  printk(KERN_INFO "%s: " fmt "\n" , __func__ , ## arg)
-#define BT_ERR(fmt, arg...)  printk(KERN_ERR  "%s: " fmt "\n" , __func__ , ## arg)
+#define BT_ERR(fmt, arg...)  printk(KERN_ERR "%s: " fmt "\n" , __func__ , ## arg)
+#define BT_DBG(fmt, arg...)  pr_debug("%s: " fmt "\n" , __func__ , ## arg)
 
 /* Connection and socket states */
 enum {