sim: bfin: tests: make run-tests.sh executable

I meant for this script to be +x, but missed when doing the initial CVS
commit.  It wasn't possible to fix w/CVS, but it is w/git, so do it.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>

2012-12-03  Mike Frysinger  <vapier@gentoo.org>

	* run-tests.sh: Add +x file mode.

sim/testsuite/sim/bfin/ChangeLog

@@ -1,3 +1,7 @@
+2013-12-07  Mike Frysinger  <vapier@gentoo.org>
+
+	* run-tests.sh: Add +x file mode.
+
 2013-06-23  Mike Frysinger  <vapier@gentoo.org>
 
 	* run-tests.sh (usage): Fix typo in exit.