Move buildroot to bsp directory.

bsp/buildroot/package/python/113-optional-zlib.patch

@@ -0,0 +1,24 @@
+Add an option to disable the zlib module
+
+Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
+---
+ configure.in |    6 ++++++
+ 1 file changed, 6 insertions(+)
+
+Index: b/configure.ac
+===================================================================
+--- a/configure.ac
++++ b/configure.ac
+@@ -2674,6 +2674,12 @@
+             DISABLED_EXTENSIONS="${DISABLED_EXTENSIONS} bz2"
+          fi])
+ 
++AC_ARG_ENABLE(zlib,
++       AS_HELP_STRING([--disable-zlib], [disable ZLIB]),
++       [ if test "$enableval" = "no"; then
++            DISABLED_EXTENSIONS="${DISABLED_EXTENSIONS} zlib"
++         fi])
++
+ AC_ARG_ENABLE(dbm,
+ 	AS_HELP_STRING([--disable-dbm], [disable DBM]),
+ 	[ if test "$enableval" = "no"; then