nb/intel/i945: Deduplicate PCIEXBAR decoding

We can use `decode_pcie_bar` instead, if we make it non-static.

Change-Id: Ic39f3df0293b4d44f031515b1f868e0bb9f750c9
Signed-off-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/44145
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Arthur Heymans <arthur@aheymans.xyz>
diff --git a/src/northbridge/intel/i945/northbridge.c b/src/northbridge/intel/i945/northbridge.c
index 20c9116..103b40f 100644
--- a/src/northbridge/intel/i945/northbridge.c
+++ b/src/northbridge/intel/i945/northbridge.c
@@ -12,7 +12,7 @@
 #include <cpu/intel/smm_reloc.h>
 #include "i945.h"
 
-static int decode_pcie_bar(u32 *const base, u32 *const len)
+int decode_pcie_bar(u32 *const base, u32 *const len)
 {
 	*base = 0;
 	*len = 0;