[roll] Roll fuchsia [starnix] Skip invalid nexthop configuration packets

See the bug for more details, but the TL;DR is that Linux will silently
discard invalid nexthop configurations, whilst continuing to process
the valid configurations it may have received. This differs from the
rust-netlink library's handling of invalid configurations:

rust-netlink/netlink-packet-route#153

I've modified our fork to behave closer to Linux, but the above change
was pulled down to stay as close as possible with the upstream source.

Original-Fixed: 387579405
Test: Local validation with repro script in bug
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1235150
Original-Revision: 4fbe60fd0a31e5c34cb9be0aba09411f52cf4a30
GitOrigin-RevId: ce48070acbe32f97a13f2a5e44eedf8482301256
Change-Id: I7f8448b25de071412917e8c056946d8eb7a59a76

Author: Aaron Knobloch

stem

@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="6206d5e88319de623c74acc33586f5bb99212b53"/>
+             revision="4fbe60fd0a31e5c34cb9be0aba09411f52cf4a30"/>
   </projects>
   <hooks>
     <hook name="install-environment"