src/sb: Use 'print("%s...", __func__)'

Change-Id: Ie0d845d3e501ed5ebeef1997944445d31768e410
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/39373
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/southbridge/intel/i82801gx/lpc.c

@@ -354,7 +354,7 @@ static void i82801gx_fixups(struct device *dev)
 
 static void lpc_init(struct device *dev)
 {
-	printk(BIOS_DEBUG, "i82801gx: lpc_init\n");
+	printk(BIOS_DEBUG, "i82801gx: %s\n", __func__);
 
 	/* Set the value for PCI command register. */
 	pci_write_config16(dev, PCI_COMMAND, 0x000f);