teams: embedded: adopt gnu/packages/coreboot.scm.

Before the commit 7cf91385c5 ("gnu: Move bincfg,
ifdtool and intelmetool to coreboot.scm."), the packages moved to coreboot.scm
were managed by the electronics team. After that, these packages became orphan
because coreoot.scm had wasn't managed by any team.

For now, the best fit is the "embedded" team because embedded also manages
bootloader.scm which also provide boot firmware images (u-boot).

* CODEOWNERS: Regenrate file.
* etc/teams.scm (embedded)<#:scope>: Add gnu/packages/coreboot.scm.

Link: https://codeberg.org/guix/guix/pulls/7065
Change-Id: I6626ad74bf5b20bee24c018292354c4db127f7a3
Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
Signed-off-by: Efraim Flashner <efraim@flashner.co.il>

CODEOWNERS

@@ -179,6 +179,7 @@ guix/scripts/import/elpa\.scm                      @guix/emacs
 tests/import/elpa\.scm                             @guix/emacs
 
 gnu/packages/bootloaders\.scm                      @guix/embedded
+gnu/packages/coreboot\.scm                         @guix/embedded
 gnu/packages/firmware\.scm                         @guix/embedded
 
 gnu/packages/emulators\.scm                        @guix/games

etc/teams.scm

@@ -16,6 +16,7 @@ exec $pre_inst_env_maybe guix repl -- "$0" "$@"
 ;;; Copyright © 2025 Cayetano Santos <csantosb@inventati.org>
 ;;; Copyright © 2025-2026 Ludovic Courtès <ludo@gnu.org>
 ;;; Copyright © 2025 jgart <jgart@dismail.de>
+;;; Copyright © 2026 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
 ;;;
 ;;; This file is part of GNU Guix.
 ;;;
@@ -690,6 +691,7 @@ ecosystem."
   (team 'embedded
         #:name "Embedded"
         #:scope (list "gnu/packages/bootloaders.scm"
+                      "gnu/packages/coreboot.scm"
                       "gnu/packages/firmware.scm")))
 
 (define-team games