mainboard/intel/emeraldlake2/ec.c: Use __func__

Change-Id: I75f534245d37f401357b611efc5c190e8a872d02
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/49554
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>

src/mainboard/intel/emeraldlake2/ec.c

@@ -7,7 +7,7 @@
 
 void lumpy_ec_init(void)
 {
-	printk(BIOS_DEBUG, "lumpy_ec_init\n");
+	printk(BIOS_DEBUG, "%s\n", __func__);
 
 	if (acpi_is_wakeup_s3())
 		return;