Bump buidlroot version to 2018.02.6

bsp/buildroot/package/openzwave/0001-Fix-compilation-of-MinOZW.patch

@@ -0,0 +1,37 @@
+From 599e2a11c6f48dde744012ec45686c08e15f3059 Mon Sep 17 00:00:00 2001
+From: Fabrice Fontaine <fabrice.fontaine@orange.com>
+Date: Mon, 3 Oct 2016 10:35:52 +0200
+Subject: [PATCH] Fix compilation of MinOZW (#991)
+
+LIBDIR was used in cpp/examples/MinOZW/Makefile to add dynamic
+libraries. However, as it was unset by default, the cross-compilation
+could fail if the host had a library such as libnss3.so in /.
+To fix this issue, this patch sets LIBDIR to top_buildir if it is unset
+
+Fixes:
+  http://autobuild.buildroot.net/results/68719fdf1320a69310bada6d3c47654dacdb5898
+
+Signed-off-by: Fabrice Fontaine <fabrice.fontaine@orange.com>
+[Upstream commit: https://github.com/OpenZWave/open-zwave/commit/599e2a11c6f48dde744012ec45686c08e15f3059]
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ cpp/examples/MinOZW/Makefile | 4 +++-
+ 1 file changed, 3 insertions(+), 1 deletion(-)
+
+diff --git a/cpp/examples/MinOZW/Makefile b/cpp/examples/MinOZW/Makefile
+index e575632a3..95d684b77 100644
+--- a/cpp/examples/MinOZW/Makefile
++++ b/cpp/examples/MinOZW/Makefile
+@@ -17,9 +17,11 @@ DEBUG_LDFLAGS	:= -g
+ 
+ top_srcdir := $(abspath $(dir $(lastword $(MAKEFILE_LIST)))../../../)
+ 
++#where is put the temporary library
++LIBDIR  	?= $(top_builddir)
+ 
+ INCLUDES	:= -I $(top_srcdir)/cpp/src -I $(top_srcdir)/cpp/tinyxml/ -I $(top_srcdir)/cpp/hidapi/hidapi/
+-LIBS =  $(wildcard $(LIBDIR)/*.so $(LIBDIR)/*.dylib $(top_builddir)/*.so $(top_builddir)/*.dylib $(top_builddir)/cpp/build/*.so $(top_builddir)/cpp/build/*.dylib )
++LIBS =  $(wildcard $(LIBDIR)/*.so $(LIBDIR)/*.dylib $(top_builddir)/cpp/build/*.so $(top_builddir)/cpp/build/*.dylib )
+ LIBSDIR = $(abspath $(dir $(firstword $(LIBS))))
+ minozwsrc := $(notdir $(wildcard $(top_srcdir)/cpp/examples/MinOZW/*.cpp))
+ VPATH := $(top_srcdir)/cpp/examples/MinOZW