Bump buidlroot version to 2018.02.6

bsp/buildroot/package/libbson/libbson.mk

@@ -0,0 +1,21 @@
+################################################################################
+#
+# libbson
+#
+################################################################################
+
+LIBBSON_VERSION = 1.6.2
+LIBBSON_SITE = https://github.com/mongodb/libbson/releases/download/$(LIBBSON_VERSION)
+LIBBSON_LICENSE = Apache-2.0, MIT (jsonl), ISC (b64), Zlib (md5)
+LIBBSON_LICENSE_FILES = COPYING THIRD_PARTY_NOTICES
+LIBBSON_CONF_OPTS = \
+	--disable-tests \
+	--disable-examples \
+	--disable-man-pages \
+	--disable-html-docs
+
+LIBBSON_INSTALL_STAGING = YES
+
+# Also has CMake support, but that forces shared+static libs and static
+# lib has a different name.
+$(eval $(autotools-package))