nb/intel/ironlake: Move out HECI remainders into southbridge

Move the remaining HECI-related stuff to southbridge scope, as the HECI
hardware is in the southbridge. Note that HECI BAR is now enabled a bit
earlier than before, but this shouldn't matter.

Change-Id: I4a29d0b5d5c5e22508bcdfe34a1c5459ae967c75
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61932
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 6565cd1..83e86c2 100644
--- a/src/southbridge/intel/ibexpeak/pch.h
+++ b/src/southbridge/intel/ibexpeak/pch.h
@@ -22,6 +22,7 @@
 /* TODO Make sure these don't get changed by stage2 */
 #define DEFAULT_GPIOBASE	0x0480
 #define DEFAULT_PMBASE		0x0500
+#define DEFAULT_HECIBAR		((u8 *)0xfed17000)
 
 #include <southbridge/intel/common/rcba.h>