[roll] Roll fuchsia [3p] Move netlink-packet-utils to forks directory

Move netlink-packet-utils to forks directory in preparation for forking.
No changes are made to the 3P code other than the addition of a
README.fuchsia file.

Original-Bug: b/330183268

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1034978
Original-Revision: 5810bcbd303fdcb8d8960113fd3b499534a85af5
GitOrigin-RevId: 965d01bd3d8e8ae24f1b3fcb797ff452007c34c3
Change-Id: I67e53dbdca4fd29f26939a34ee8c5f01f1331519
diff --git a/stem b/stem
index 1240143..234752b 100644
--- a/stem
+++ b/stem
@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="268c99ed0afcbe1b563249261065272b32721737"/>
+             revision="5810bcbd303fdcb8d8960113fd3b499534a85af5"/>
   </projects>
   <hooks>
     <hook name="install-environment"