[roll] Roll fuchsia [kernel][power] Header cleanup

These files use cpp23::to_underlying but weren't directly including
lib/stdcompat/utility.h, but relying on it being included as a
side-effect of some other include. I'm cleaning up stdcompat so these
files need to include the right header directly.

Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1280624
Original-Revision: 6e1db3f926ad5f36fd77143637d69ade247e59d2
GitOrigin-RevId: 8d0f4b4464c5d9b9700df70e73d78678f124203d
Change-Id: Ibd6d6e25d33768177978e330e761e192b80d8897
diff --git a/stem b/stem
index f29a628..4ad6dac 100644
--- a/stem
+++ b/stem
@@ -7,7 +7,7 @@
             manifest="manifests/platform"
             root=""
             remote="https://fuchsia.googlesource.com/fuchsia"
-            revision="d52edd8a35cdd7ba024c3f5edcb6fe7d90f75015"/>
+            revision="6e1db3f926ad5f36fd77143637d69ade247e59d2"/>
   </imports>
   <projects>
     <project name="cobalt"