[roll] Roll fuchsia [packet-formats] Fix parsing of unknown TCP Option

The original code did not correctly handle the length of unknown TCP
Options, leading to parse errors.

Original-Bug: 462085360
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1442312
Original-Revision: 94d1a9429ddf1f802b41953b81f39f5bab2888b1
GitOrigin-RevId: 0bd2eab5c84cd299603f0c76862206faa0bfb67e
Change-Id: I4ba7f892db08dcca4cf4e9b451be69b6e22d7a74

Author: Jeff Martin

stem

@@ -7,7 +7,7 @@
             manifest="manifests/platform"
             root=""
             remote="https://fuchsia.googlesource.com/fuchsia"
-            revision="d6327dc5a2db0a96c94af9255e1fd60f8a0ed14e"/>
+            revision="94d1a9429ddf1f802b41953b81f39f5bab2888b1"/>
   </imports>
   <projects>
     <project name="cobalt"