ndptool: don't use static variable for local context in msgrcv_handler_func()
ndptool: don't use static variable for local context in msgrcv_handler_func()

ndptool is single threaded, so this isn't an actual issue. But
it's ugly and unnecessary.

Signed-off-by: Thomas Haller <16e26612e4159990a6b3691e92592e691ff74132@redhat.com>
Signed-off-by: Jiri Pirko <1b548d10035ae428195c41f5d55eedb1437ccd8a@nvidia.com>

jpirko/libndp,jpirko/libndp