superio/smsc/sch5545/acpi/superio.asl: Fix UART2 device name

Due to copy-paste error, the UART2 device name is the same as
UART1. Fix it.

Change-Id: I796d09f321101a36731a56099af738c9485df8a2
Signed-off-by: Michał Żygowski <michal.zygowski@3mdeb.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78350
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Krystian Hebel <krystian.hebel@3mdeb.com>
diff --git a/src/superio/smsc/sch5545/acpi/superio.asl b/src/superio/smsc/sch5545/acpi/superio.asl
index c9a5f5a..7ef8fcf 100644
--- a/src/superio/smsc/sch5545/acpi/superio.asl
+++ b/src/superio/smsc/sch5545/acpi/superio.asl
@@ -470,7 +470,7 @@
 
 #ifdef SCH5545_SHOW_UARTB
 #define SUPERIO_UARTB_LDN 8
-	Device (UAR1)
+	Device (UAR2)
 	{
 		Name (_HID, EisaId ("PNP0501"))
 		Name (_UID, SUPERIO_UID(SER, SUPERIO_UARTB_LDN))