[roll] Roll fuchsia [sysmem] Unconditionally return -1 from main

1. The CF feature `on_terminate: "reboot"` is being changed to ignore
components that stop themselves without error
2. sysmem should never return from main

so sysmem now unconditionally returns -1 from main to continue
triggering the reboot behavior in the case where it erroneously
finishes.

Original-Bug: 352624082
Original-Reviewed-on: https://fuchsia-review.googlesource.com/c/fuchsia/+/1171240
Original-Revision: 7b00160ea207bb11392380850e489e6ae3206bb8
GitOrigin-RevId: 483b58ea0b6bd379374ed7ced078514275078f93
Change-Id: I8824ab2adf0a93f97dd6e33e7314d223bba1f227

Author: Ben Keller

stem

@@ -11,7 +11,7 @@
              githooks="integration/git-hooks"
              remote="https://fuchsia.googlesource.com/fuchsia"
              gerrithost="https://fuchsia-review.googlesource.com"
-             revision="faf0ca838df8300630c5b56b130047f0b7b0445a"/>
+             revision="7b00160ea207bb11392380850e489e6ae3206bb8"/>
   </projects>
   <hooks>
     <hook name="install-environment"