Bump buidlroot version to 2018.02.6

bsp/buildroot/package/python-cffi/Config.in

@@ -1,6 +1,7 @@
 config BR2_PACKAGE_PYTHON_CFFI
 	bool "python-cffi"
 	select BR2_PACKAGE_LIBFFI
+	select BR2_PACKAGE_PYTHON_PYCPARSER # runtime
 	help
 	  This is the Foreign Function Interface for Python calling C
 	  code. The aim of this project is to provide a convenient

bsp/buildroot/package/python-cffi/python-cffi.hash

@@ -1,3 +1,4 @@
 # md5 from https://pypi.python.org/pypi/cffi/json, sha256 locally computed
-md5  c8e877fe0426a99d0cf5872cf2f95b27  cffi-1.8.3.tar.gz
-sha256	 c321bd46faa7847261b89c0469569530cad5a41976bb6dba8202c0159f476568  cffi-1.8.3.tar.gz
+md5	a731487324b501c8295221b629d3f5f3  cffi-1.11.2.tar.gz
+sha256	ab87dd91c0c4073758d07334c1e5f712ce8fe48f007b86f8238773963ee700a6  cffi-1.11.2.tar.gz
+sha256  04b80f5b077bbed68808cfebadeb5e3523f2a8c9a96495c587bd96df1eac2a33  LICENSE

bsp/buildroot/package/python-cffi/python-cffi.mk

@@ -4,9 +4,9 @@
 #
 ################################################################################
 
-PYTHON_CFFI_VERSION = 1.8.3
+PYTHON_CFFI_VERSION = 1.11.2
 PYTHON_CFFI_SOURCE = cffi-$(PYTHON_CFFI_VERSION).tar.gz
-PYTHON_CFFI_SITE = https://pypi.python.org/packages/0a/f3/686af8873b70028fccf67b15c78fd4e4667a3da995007afc71e786d61b0a
+PYTHON_CFFI_SITE = https://pypi.python.org/packages/c9/70/89b68b6600d479034276fed316e14b9107d50a62f5627da37fafe083fde3
 PYTHON_CFFI_SETUP_TYPE = setuptools
 PYTHON_CFFI_DEPENDENCIES = host-pkgconf libffi
 PYTHON_CFFI_LICENSE = MIT
@@ -20,7 +20,7 @@ HOST_PYTHON_CFFI_ENV = \
 	PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 \
 	PKG_CONFIG="$(PKG_CONFIG_HOST_BINARY)" \
 	PKG_CONFIG_SYSROOT_DIR="/" \
-	PKG_CONFIG_LIBDIR="$(HOST_DIR)/usr/lib/pkgconfig:$(HOST_DIR)/usr/share/pkgconfig"
+	PKG_CONFIG_LIBDIR="$(HOST_DIR)/lib/pkgconfig:$(HOST_DIR)/share/pkgconfig"
 HOST_PYTHON_CFFI_DEPENDENCIES = host-pkgconf host-python-pycparser host-libffi
 
 $(eval $(python-package))