libteam: retry on NLE_DUMP_INTR error
libteam: retry on NLE_DUMP_INTR error

Fix the get_ifinfo_list() function to retry if nl_recvmsgs fails with
error -NLE_DUMP_INTR.
Add some extra error reporting to get_ifinfo_list().
This is a fix for https://bugzilla.redhat.com/show_bug.cgi?id=1273052

Signed-off-by: Chris Card <d9620ddb678ec1dea50c679654a1b7e7d078de15@gmail.com>
Signed-off-by: Jiri Pirko <1b548d10035ae428195c41f5d55eedb1437ccd8a@resnulli.us>

jpirko/libteam,jpirko/libteam,jpirko/libteam