[roll] Roll fuchsia [rust][libc] Fork libc crate to cherry-pick sockaddr_vm definition

This is being added upstream via
rust-lang/libc#4194. This forks the crate so we
can add a local definition to unblock our roll of various Android
libraries.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1172178
Original-Revision: 9faf17da28db7703467371dddc1eb7b0b731cb38
GitOrigin-RevId: f15cd63da2d1998303dcb6938ddf9fdd49a94b34
Change-Id: I361434b0cfd3f398c6b28e51da8ab5ba8df5be50

Author: James Robinson

stem

@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="bf32fec1502bdee82ba717bc772af3fc5fd69df9"/>
+             revision="9faf17da28db7703467371dddc1eb7b0b731cb38"/>
   </projects>
   <hooks>
     <hook name="install-environment"