doc: migration-guide-3.7: fix rendering of Bluetooth HCI section

some bullet points had incorrect indent causing
the list to render as "definition list"

Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
This commit is contained in:
Benjamin Cabé 2024-07-19 16:46:07 +02:00 committed by Alberto Escolar
commit 2f8cfc670a