[roll] Roll fuchsia [elfldltl] Make TlsLayout explicitly constructible, comparable

This adds a two-argument constructor to TlsLayout so it can be
used from an external data source rather than only mutated from
its default-constructed state.  It also adds all the comparison
operators to TlsLayout.

Original-Bug: 342469121
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1239307
Original-Revision: 8b06ba4f0fa01c84092ab06d1a6dbdf1c630b3b7
GitOrigin-RevId: 8fa57973fc1164a6a9d0d7699e55ee6058a62c36
Change-Id: I78d75987acc1abd4f8f9401b8a50960440de2e76
diff --git a/stem b/stem
index f8ffaef..9f7267b 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="b6637d35425843ec0c81a3a7b3eaec82b032c319"/>
+             revision="8b06ba4f0fa01c84092ab06d1a6dbdf1c630b3b7"/>
   </projects>
   <hooks>
     <hook name="install-environment"