Added clear command to toolbox

Change-Id: Ifb1b7693727997b94614f7da73081f0894ee88ad
diff --git a/toolbox/Android.mk b/toolbox/Android.mk
index 086ba0d..b027787 100644
--- a/toolbox/Android.mk
+++ b/toolbox/Android.mk
@@ -57,7 +57,8 @@
 	touch \
 	lsof \
 	du \
-	md5
+	md5 \
+	clear
 
 ifeq ($(HAVE_SELINUX),true)