drivers: i3c: i3c_shell: add alphabetical order constraint

Add /* zephyr-keep-sorted-start */ around DT_FOREACH_STATUS_OKAY.

Signed-off-by: Alvis Sun <yfsun@nuvoton.com>
diff --git a/drivers/i3c/i3c_shell.c b/drivers/i3c/i3c_shell.c
index 0877ebd..d4f3269 100644
--- a/drivers/i3c/i3c_shell.c
+++ b/drivers/i3c/i3c_shell.c
@@ -84,9 +84,11 @@
 	I3C_ATTACHED_DEV_GET_FN(node_id)                                                           \
 	I3C_LIST_DEV_GET_FN(node_id)
 
+/* zephyr-keep-sorted-start */
 DT_FOREACH_STATUS_OKAY(cdns_i3c, I3C_CTRL_FN)
 DT_FOREACH_STATUS_OKAY(nuvoton_npcx_i3c, I3C_CTRL_FN)
 DT_FOREACH_STATUS_OKAY(nxp_mcux_i3c, I3C_CTRL_FN)
+/* zephyr-keep-sorted-stop */
 
 #define I3C_CTRL_LIST_ENTRY(node_id)                                                               \
 	{                                                                                          \