Mise à jour du README

git-svn-id: https://redmine.imt-atlantique.fr/svn/xaal/code/C/trunk@1019 b32b6428-25c9-4566-ad07-03861ab6144f

libxaal_aux/README.TXT

+* libxaal_aux *
+Auxiliary helpers for developing xAAL devices
+
+Functions provided here are not part of the xAAL specifications, but they are convenient.
+Everything here is optional or could be provided in another way.
+This may introduce new dependencies.
+
+
+Contains:
+- xAAL_aux_eth_addr(): Get the Ethernet address of the interfaces of the host in a way suitable for filling hwInfo (getDescription)
+  The implementation is based on libmnl/examples/rtnl/rtnl-link-dump.c (Linux kernels having netlink)
+  Dependency: libmnl-dev
+- Noting else for now ;-)