package/thrift: add dependency on host-autoconf-archive

The ax_cxx_compile_stdcxx_11 macro bundled in thrift package is
brocken [1] and out of date.

Add autoconf-archive as dependency to use an updated version of this macro.

Since Thrift actually doesn't use that particular C++11 feature, add a
patch to make C++11 support optional.

[1] https://savannah.gnu.org/patch/index.php?8287

Fixes:
[thrift]
http://autobuild.buildroot.net/results/21e/21e3fff1e0d714f94ac7e621289d1a59bc02a05f/build-end.log
[host-thrift]
http://autobuild.buildroot.net/results/b89/b89ffc2bff699eb10bb6abd92369a43d4900354d/build-end.log



Signed-off-by: Romain Naour <romain.naour@openwide.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>