Makefile.inc: Put every tool in `TOOLLIST` on separate line

This way, commit differences will be easier to read. Also sort the list
lexicographically.

Change-Id: I4ce3ac9018a3fddf5e30d7c1ac0c57090fac1d3d
Signed-off-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-on: http://review.coreboot.org/12084
Tested-by: build bot (Jenkins)
Reviewed-by: Martin Roth <martinroth@google.com>

Makefile.inc

@@ -699,7 +699,10 @@ junit.xml:
 	echo "</testsuite>" >> $@.tmp
 	mv $@.tmp "util/$(UTIL)/$@"
 
-TOOLLIST=cbmem nvramtool inteltool
+TOOLLIST= \
+	cbmem \
+	inteltool \
+	nvramtool
 JENKINS_PAYLOAD?=none
 CPUS?=4
 what-jenkins-does: