Makefile: update clean-utils & distclean-utils

Distclean-utils target was missing a backslash at the end to continue on
the next line.

Change-Id: I2bddff342f9c0fcb27e9b40ac94377c60ba5b7fe
Signed-off-by: Martin Roth <martinroth@google.com>
Reviewed-on: https://review.coreboot.org/20494
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/Makefile b/Makefile
index 87576c8..31fb3ad 100644
--- a/Makefile
+++ b/Makefile
@@ -417,10 +417,12 @@
 	rm -f tags
 
 clean-utils:
-	$(foreach tool, $(TOOLLIST), $(MAKE) -C util/$(tool) clean MFLAGS= MAKEFLAGS= ;)
+	$(foreach tool, $(TOOLLIST), \
+		$(MAKE) -C util/$(tool) clean MFLAGS= MAKEFLAGS= ;)
 
 distclean-utils:
-	$(foreach tool, $(TOOLLIST), $(MAKE) -C util/$(tool) distclean MFLAGS= MAKEFLAGS= ;
+	$(foreach tool, $(TOOLLIST), \
+		$(MAKE) -C util/$(tool) distclean MFLAGS= MAKEFLAGS= ; \
 		rm -f /util/$(tool)/junit.xml;)
 
 distclean: clean clean-ctags clean-cscope distclean-payloads distclean-utils