UPSTREAM: util/bincfg/Makefile: change ./bincfg to $(abspath $(TARGET))

This change was promised as a follow-up in
change ID: Ic0302f663cbc931325334d0cce93d3b0bf937cc6

BUG=none
BRANCH=none
TEST=none

Change-Id: I6e8277c9f93001cca99adc2a138203220312ef82
Signed-off-by: Patrick Georgi <pgeorgi@google.com>
Original-Commit-Id: a789607f845b680d761deae5042bd006915f97b6
Original-Signed-off-by: Martin Roth <martin@coreboot.org>
Original-Change-Id: I9a41b46cc90684746e2b240c8ee442df1b3d7cf5
Original-Reviewed-on: https://review.coreboot.org/c/coreboot/+/52111
Original-Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Original-Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/coreboot/+/2810778
Reviewed-by: Patrick Georgi <pgeorgi@chromium.org>
Tested-by: Patrick Georgi <pgeorgi@chromium.org>
Commit-Queue: Patrick Georgi <pgeorgi@chromium.org>
diff --git a/util/bincfg/Makefile b/util/bincfg/Makefile
index 2dc5073..ca375a5 100644
--- a/util/bincfg/Makefile
+++ b/util/bincfg/Makefile
@@ -20,21 +20,21 @@
 
 # Use this target to generate GbE for X200
 gen-gbe-ich9m: $(TARGET)
-	./bincfg gbe-ich9m.spec gbe-ich9m.set gbe1.bin
+	$(abspath $(TARGET)) gbe-ich9m.spec gbe-ich9m.set gbe1.bin
 	# duplicate binary as per spec
 	cat gbe1.bin gbe1.bin > flashregion_3_gbe.bin
 	rm -f gbe1.bin
 
 # Use this target to generate GbE for X220/x230
 gen-gbe-82579LM: $(TARGET)
-	./bincfg gbe-82579LM.spec gbe-82579LM.set gbe1.bin
+	$(abspath $(TARGET)) gbe-82579LM.spec gbe-82579LM.set gbe1.bin
 	# duplicate binary as per spec
 	cat gbe1.bin gbe1.bin > flashregion_3_gbe.bin
 	rm -f gbe1.bin
 
 # Use this target to generate IFD for X200
 gen-ifd-x200: $(TARGET)
-	./bincfg ifd-x200.spec ifd-x200.set flashregion_0_fd.bin
+	$(abspath $(TARGET)) ifd-x200.spec ifd-x200.set flashregion_0_fd.bin
 
 clean:
 	rm -f *.lex.c *.tab.c *.tab.h *.o bincfg flashregion_0_fd.bin flashregion_3_gbe.bin