payloads/external/Yabits: Pass XGCCPATH

Pass `XGCCPATH` instead of individual programs as that is what the
Makefile expects.

Change-Id: I3267ec5259e9d37b2f3b0b8c126d173fc8b5a3ca
Signed-off-by: Nico Huber <nico.h@gmx.de>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/34556
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Martin Roth <martinroth@google.com>
diff --git a/payloads/external/Makefile.inc b/payloads/external/Makefile.inc
index 9c34efa..df168f2 100644
--- a/payloads/external/Makefile.inc
+++ b/payloads/external/Makefile.inc
@@ -300,10 +300,7 @@
 
 payloads/external/Yabits/uefi/build/uefi.elf yabits:
 	$(MAKE) -C payloads/external/Yabits all \
-		CC="$(CC_x86_32)" \
-		LD="$(LD_x86_32)" \
-		OBJCOPY="$(OBJCOPY_x86_32)" \
-		AS="$(AS_x86_32)" \
+		XGCCPATH="$(XGCCPATH)" \
 		CONFIG_YABITS_REVISION=$(CONFIG_YABITS_REVISION) \
 		CONFIG_YABITS_REVISION_ID=$(CONFIG_YABITS_REVISION_ID) \
 		CONFIG_YABITS_MASTER=$(CONFIG_YABITS_MASTER) \