NetlinkEvent - ignore captive portal and pref64 nd user opts

These are provided to userspace by newer kernels.

Test: builds
Bug: 150648313
Change-Id: I811c75e9a4739db149f502b9a43c99a8ed883341
Merged-In: I811c75e9a4739db149f502b9a43c99a8ed883341
1 file changed