packages/utils: new package relayctl

Package relayctl provides a command-line tool to control
SainSmart USB relay boards based on FTDI chips using bitbang
mode.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>

utils/relayctl/patches/0001-ftdi1.patch

@@ -0,0 +1,26 @@
+From 13556aaf94a2b0738a835a29f76be41d775a2d33 Mon Sep 17 00:00:00 2001
+From: Heinrich Schuchardt <xypron.glpk@gmx.de>
+Date: Sun, 3 Jul 2016 15:51:43 +0200
+Subject: [PATCH] Use -lftdi1
+
+Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
+---
+ src/Makefile.am | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/src/Makefile.am b/src/Makefile.am
+index a533d5c..4dbe6b5 100644
+--- a/src/Makefile.am
++++ b/src/Makefile.am
+@@ -1,7 +1,7 @@
+ sbin_PROGRAMS = \
+   relayctl
+ 
+-relayctl_LDFLAGS = -lftdi
++relayctl_LDFLAGS = -lftdi1
+ 
+ relayctl_SOURCES = relayctl.c
+ 
+-- 
+2.1.4
+