soc/amd/stoneyridge/southbridge: move PSP BAR hide bit to its register

Signed-off-by: Felix Held <felix-coreboot@felixheld.de>
Change-Id: Id9838e2433004686e3ea82724c55066bcee1f019
Reviewed-on: https://review.coreboot.org/c/coreboot/+/50147
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Raul Rangel <rrangel@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/soc/amd/stoneyridge/include/soc/southbridge.h b/src/soc/amd/stoneyridge/include/soc/southbridge.h
index 72cc60a..8d82035 100644
--- a/src/soc/amd/stoneyridge/include/soc/southbridge.h
+++ b/src/soc/amd/stoneyridge/include/soc/southbridge.h
@@ -202,10 +202,10 @@
 #define PSP_MAILBOX_OFFSET		0x70 /* offset from BAR3 value */
 
 #define PSP_BAR_ENABLES			0x48
-#define  PSP_MAILBOX_BAR_EN		0x10
+#define  BAR3HIDE			BIT(12) /* Bit to hide BAR3 addr */
+#define  PSP_MAILBOX_BAR_EN		BIT(4)
 
 #define MSR_CU_CBBCFG			0xc00110a2 /* PSP Pvt Blk Base Addr */
-#define   BAR3HIDE			BIT(12) /* Bit to hide BAR3 addr */
 
 typedef struct aoac_devs {
 	unsigned int :5;