install process needs venti/config, too

Reference: /n/atom/patch/applied/instventiconf
Date: Fri Apr  4 01:38:22 CES 2014
Signed-off-by: quanstro@quanstro.net

--- /sys/lib/dist/amd64/proto/archmin	Fri Apr  4 01:38:22 2014
+++ /sys/lib/dist/amd64/proto/archmin	Fri Apr  4 01:38:22 2014
@@ -55,6 +55,7 @@
 			fs	775	sys	sys
 		usb	d775	sys	sys
 		venti	d775	sys	sys
+			config		775	sys	sys
 			fmtarenas	775	sys	sys
 			fmtbloom	775	sys	sys
 			fmtindex	775	sys	sys