Bump buidlroot version to 2018.02.6

bsp/buildroot/package/libsepol/0003-support-static-only.patch

@@ -0,0 +1,45 @@
+From 2140db697c7f1da2a0a3f7bbcb14c1a0dade84e5 Mon Sep 17 00:00:00 2001
+From: Adam Duskett <Adamduskett@outlook.com>
+Date: Mon, 9 Oct 2017 16:28:12 -0400
+Subject: [PATCH] Add support for static-only build
+
+Instead of unconditionally building shared libraries, this patch
+improves the libsepol build system with a "STATIC" variable, which
+when defined to some non-empty value, will disable the build of shared
+libraries. It allows to support cases where the target architecture
+does not have support for shared libraries.
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+Signed-off-by: Adam Duskett <Adamduskett@outlook.com>
+---
+ src/Makefile | 13 ++++++++++---
+ 1 file changed, 10 insertions(+), 3 deletions(-)
+
+diff -durNw libsepol-2.7.orig/src/Makefile libsepol-2.7/src/Makefile
+--- libsepol-2.7.orig/src/Makefile	2018-01-15 21:07:51.285183415 +0100
++++ libsepol-2.7/src/Makefile	2018-01-15 21:08:56.515182717 +0100
+@@ -39,7 +39,12 @@
+ LN=gln
+ endif
+ 
+-all: $(LIBA) $(LIBSO) $(LIBPC)
++ALL_TARGETS = $(LIBA) $(LIBPC)
++ifeq ($(STATIC),)
++ALL_TARGETS += $(LIBSO)
++endif
++
++all: $(ALL_TARGETS)
+ 
+ 
+ $(LIBA):  $(OBJS)
+@@ -81,8 +86,10 @@
+ install: all
+ 	test -d $(LIBINSTALL) || install -m 755 -d $(LIBINSTALL)
+ 	install -m 644 $(LIBA) $(LIBINSTALL)
++ifeq ($(STATIC),)
+ 	test -d $(LIBINSTALL) || install -m 755 -d $(LIBINSTALL)
+ 	install -m 755 $(LIBSO) $(LIBINSTALL)
++endif
+ 	test -d $(LIBINSTALL)/pkgconfig || install -m 755 -d $(LIBINSTALL)/pkgconfig
+ 	install -m 644 $(LIBPC) $(LIBINSTALL)/pkgconfig
+ 	$(LN) -sf --relative $(LIBINSTALL)/$(LIBSO) $(LIBINSTALL)/$(TARGET)