r8169: add KERN_DEBUG to dprintk (trivial)

- prefix dprintk with KERN_DEBUG
- fix a bug with existing use of dprintk (PFX KERN_INFO PFX)

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Francois Romieu <romieu@fr.zoreil.com>
Cc: Edward Hsu <edward_hsu@realtek.com.tw>

drivers/net/r8169.c

@@ -44,7 +44,8 @@
 		printk( "Assertion failed! %s,%s,%s,line=%d\n",	\
 		#expr,__FILE__,__FUNCTION__,__LINE__);		\
 	}
-#define dprintk(fmt, args...)	do { printk(PFX fmt, ## args); } while (0)
+#define dprintk(fmt, args...) \
+	do { printk(KERN_DEBUG PFX fmt, ## args); } while (0)
 #else
 #define assert(expr) do {} while (0)
 #define dprintk(fmt, args...)	do {} while (0)
@@ -1933,7 +1934,7 @@ static void rtl_hw_start_8169(struct net_device *dev)
 
 	if ((tp->mac_version == RTL_GIGA_MAC_VER_02) ||
 	    (tp->mac_version == RTL_GIGA_MAC_VER_03)) {
-		dprintk(KERN_INFO PFX "Set MAC Reg C+CR Offset 0xE0. "
+		dprintk("Set MAC Reg C+CR Offset 0xE0. "
 			"Bit-3 and bit-14 MUST be 1\n");
 		tp->cp_cmd |= (1 << 14);
 	}