arm-trusted-firmware-tools: add patch to pass LDFLAGS

This should hopefully fix builds on the buildbot.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>

package/boot/arm-trusted-firmware-tools/patches/001-respect-LDFLAGS.patch

@@ -0,0 +1,11 @@
+--- a/tools/fiptool/Makefile
++++ b/tools/fiptool/Makefile
+@@ -38,7 +38,7 @@
+ 
+ ${PROJECT}: ${OBJECTS} Makefile
+ 	@echo "  HOSTLD  $@"
+-	${Q}${HOSTCC} ${OBJECTS} -o $@ ${LDLIBS}
++	${Q}${HOSTCC} ${OBJECTS} -o $@ ${LDLIBS} $(LDFLAGS)
+ 	@${ECHO_BLANK_LINE}
+ 	@echo "Built $@ successfully"
+ 	@${ECHO_BLANK_LINE}