[roll] Roll fuchsia [kernel][phys] Update phys OWNERS file.

Add joshuaseaton@ and dgreenaway@ who are actively working on phys.

Remove abdulla@, teisenbe@, and travisg@: they have OWNERs at higher
levels, and are not actively working on phys.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/470697
Original-Revision: e15ebb7f60d982b4993eccac3b5da4ca1c381723
GitOrigin-RevId: 2b55ee0d530bd78ba08ed90e56bce67b3b2a9c85
Change-Id: I597c013d191a75a703897dd266991bbde33393da
diff --git a/stem b/stem
index 8497cb5..556ccd39 100644
--- a/stem
+++ b/stem
@@ -10,7 +10,7 @@
              githooks=""
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="00bb296819f0fa68987aca98abbd76841c4e1905"/>
+             revision="e15ebb7f60d982b4993eccac3b5da4ca1c381723"/>
   </projects>
   <hooks>
     <hook name="install-fx"