package/igd2-for-linux: bump to version 2.1

Move to autotools which has been added to this version to fix static
build failure with an openssl-enabled libupnp in version > 1.6

Fixes:
 - http://autobuild.buildroot.org/results/86214570ac5093d4a5a31fadae59c3f47df16948

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
2 files changed