Move buildroot to bsp directory.

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

@@ -0,0 +1,9 @@
+config BR2_PACKAGE_PYTHON_CFFI
+	bool "python-cffi"
+	select BR2_PACKAGE_LIBFFI
+	help
+	  This is the Foreign Function Interface for Python calling C
+	  code. The aim of this project is to provide a convenient
+	  and reliable way of calling C code from Python.
+
+	  https://pypi.python.org/pypi/cffi

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

@@ -0,0 +1,4 @@
+# From https://pypi.python.org/pypi?:action=show_md5&digest=dec8441e67880494ee881305059af656
+md5  dec8441e67880494ee881305059af656  cffi-1.5.0.tar.gz
+# Calculated based on the hash above
+sha256	 44f76f6c3fc654860821785192eca29bd66531af57d09b681e6d52584604a7e7  cffi-1.5.0.tar.gz

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

@@ -0,0 +1,27 @@
+################################################################################
+#
+# python-cffi
+#
+################################################################################
+
+PYTHON_CFFI_VERSION = 1.5.0
+PYTHON_CFFI_SOURCE = cffi-$(PYTHON_CFFI_VERSION).tar.gz
+PYTHON_CFFI_SITE = https://pypi.python.org/packages/source/c/cffi
+PYTHON_CFFI_SETUP_TYPE = setuptools
+PYTHON_CFFI_DEPENDENCIES = host-pkgconf libffi
+PYTHON_CFFI_LICENSE = MIT
+PYTHON_CFFI_LICENSE_FILES = LICENSE
+
+# This host package uses pkg-config to find libffi, so we have to
+# provide the proper hints for pkg-config to behave properly for host
+# packages.
+HOST_PYTHON_CFFI_ENV = \
+	PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 \
+	PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 \
+	PKG_CONFIG="$(PKG_CONFIG_HOST_BINARY)" \
+	PKG_CONFIG_SYSROOT_DIR="/" \
+	PKG_CONFIG_LIBDIR="$(HOST_DIR)/usr/lib/pkgconfig:$(HOST_DIR)/usr/share/pkgconfig"
+HOST_PYTHON_CFFI_DEPENDENCIES = host-pkgconf host-python-pycparser host-libffi
+
+$(eval $(python-package))
+$(eval $(host-python-package))