amdfwtool: Add instance = 0 for bios image

For future BIOS image entry whose instance = 1.

Change-Id: Iaa40872b270cf9ff289794c8c51c4d8b448d862d
Signed-off-by: Zheng Bao <fishbaozi@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/69151
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Fred Reitberger <reitbergerfred@gmail.com>
Reviewed-by: Martin L Roth <gaumless@gmail.com>
diff --git a/util/amdfwtool/amdfwtool.c b/util/amdfwtool/amdfwtool.c
index fd5c811..3c213e7 100644
--- a/util/amdfwtool/amdfwtool.c
+++ b/util/amdfwtool/amdfwtool.c
@@ -372,7 +372,7 @@
 	{ .type = AMD_BIOS_APCB_BK, .inst = 15, .level = BDT_BOTH },
 	{ .type = AMD_BIOS_APOB, .level = BDT_BOTH },
 	{ .type = AMD_BIOS_BIN,
-			.reset = 1, .copy = 1, .zlib = 1, .level = BDT_BOTH },
+			.reset = 1, .copy = 1, .zlib = 1, .inst = 0, .level = BDT_BOTH },
 	{ .type = AMD_BIOS_APOB_NV, .level = BDT_LVL2 },
 	{ .type = AMD_BIOS_PMUI, .inst = 1, .subpr = 0, .level = BDT_BOTH },
 	{ .type = AMD_BIOS_PMUD, .inst = 1, .subpr = 0, .level = BDT_BOTH },