mips: msp71xx/serial: convert to pr_foo() helpers

Convert to pr_foo() helpers rather than printk(KERN_.*).
Acked-by: NRalf Baechle <ralf@linux-mips.org>
Acked-by: Anoop P A<Anoop_P.A@pmc-sierra.com>
Acked-by: NAlan Cox <alan@linux.intel.com>
Signed-off-by: NJamie Iles <jamie@jamieiles.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

arch/mips/pmc-sierra/msp71xx/msp_serial.c

@@ -65,7 +65,7 @@ void __init msp_serial_setup(void)
 	up.line         = 0;
 	up.private_data		= (void*)UART0_STATUS_REG;
 	if (early_serial_setup(&up))
-		printk(KERN_ERR "Early serial init of port 0 failed\n");
+		pr_err("Early serial init of port 0 failed\n");
 
 	/* Initialize the second serial port, if one exists */
 	switch (mips_machtype) {
@@ -89,5 +89,5 @@ void __init msp_serial_setup(void)
 	up.line         = 1;
 	up.private_data		= (void*)UART1_STATUS_REG;
 	if (early_serial_setup(&up))
-		printk(KERN_ERR "Early serial init of port 1 failed\n");
+		pr_err("Early serial init of port 1 failed\n");
 }