i2c: Add missing KERN_* constants to printks

According to kerneljanitors todo list all printk calls (beginning
a new line) should have an according KERN_* constant.
Those are the missing pieces here for the i2c subsystem.

Signed-off-by: Frank Seidel <frank@f-seidel.de>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c
index 4aa8138..c420a7c 100644
--- a/drivers/i2c/busses/i2c-pca-isa.c
+++ b/drivers/i2c/busses/i2c-pca-isa.c
@@ -49,7 +49,8 @@
 {
 #ifdef DEBUG_IO
 	static char *names[] = { "T/O", "DAT", "ADR", "CON" };
-	printk("*** write %s at %#lx <= %#04x\n", names[reg], base+reg, val);
+	printk(KERN_DEBUG "*** write %s at %#lx <= %#04x\n", names[reg],
+	       base+reg, val);
 #endif
 	outb(val, base+reg);
 }
@@ -60,7 +61,7 @@
 #ifdef DEBUG_IO
 	{
 		static char *names[] = { "STA", "DAT", "ADR", "CON" };
-		printk("*** read  %s => %#04x\n", names[reg], res);
+		printk(KERN_DEBUG "*** read  %s => %#04x\n", names[reg], res);
 	}
 #endif
 	return res;