[roll] Roll fuchsia [wlan] Add tx_power persistence note

Original-Original-Bug: 519046706
Test: docstring-only change
Original-Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1640574
Original-Original-Revision: c086f91906a9bb08d54b7239a269f67946e6e3c1
GitOrigin-RevId: 1346ff8435996c1532b509533291fe69e08acfa0
Change-Id: I05b163788b5b70e6b5a381fe9e0673750ba5e746
Reviewed-on: https://fuchsia-review.googlesource.com/c/integration/+/1643000
Cr-Commit-Position: refs/heads/main@{#194318}

stem

diff --git a/stem b/stem
index 9c3c413..ace1782 100644
--- a/stem
+++ b/stem
@@ -8,6 +8,6 @@
             manifest="manifests/platform"
             root=""
             remote="https://fuchsia.googlesource.com/fuchsia"
-            revision="8131c81845d1083c8adf37976b1f450ee83f1d49"/>
+            revision="c086f91906a9bb08d54b7239a269f67946e6e3c1"/>
   </imports>
 </manifest>