sb/intel/ibexpeak: Add define for PRSTS register

Change-Id: Ia9a6b0c7f2a07796f850acd2349067ba5e5eb735
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35453
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/southbridge/intel/ibexpeak/pch.h b/src/southbridge/intel/ibexpeak/pch.h
index ee0f9ad..e7cc9d2 100644
--- a/src/southbridge/intel/ibexpeak/pch.h
+++ b/src/southbridge/intel/ibexpeak/pch.h
@@ -352,6 +352,8 @@
 #define SOFT_RESET_CTRL 0x38f4
 #define SOFT_RESET_DATA 0x38f8
 
+#define PRSTS		0x3310
+
 #define DIR_ROUTE(x,a,b,c,d) \
   RCBA32(x) = (((d) << DIR_IDR) | ((c) << DIR_ICR) | \
                ((b) << DIR_IBR) | ((a) << DIR_IAR))