Add more if_tun.h constants am: fab7930dc5 am: c0ddd187d1 am: 0efe46eaf7 am: 5956c3fc7f am: 96fea2120b

Original change: https://android-review.googlesource.com/c/platform/external/rust/crates/libc/+/2062567

Change-Id: I566a61cf66d6b4802ce00014780a86ef59b6381f
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>