update edk2 submodule to edk2-stable202402

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

diff --git a/roms/edk2 b/roms/edk2
index b8a3eec88cc74bbfe7fb389d026cc7d1d8a989c8..edc6681206c1a8791981a2f911d2fb8b3d2f5768 160000 (submodule)
--- a/roms/edk2
+++ b/roms/edk2
@@ -1 +1 @@
-Subproject commit b8a3eec88cc74bbfe7fb389d026cc7d1d8a989c8
+Subproject commit edc6681206c1a8791981a2f911d2fb8b3d2f5768