zephyr: Fix boot serial extensions

Fixes building the bootloader with serial recovery mode and boot
serial extensions enabled due to changes in Zephyr's MCUmgr file
and naming changes.

Signed-off-by: Jamie McCrae <jamie.mccrae@nordicsemi.no>
diff --git a/boot/zephyr/boot_serial_extensions.c b/boot/zephyr/boot_serial_extensions.c
index baa151c..b8bcd3e 100644
--- a/boot/zephyr/boot_serial_extensions.c
+++ b/boot/zephyr/boot_serial_extensions.c
@@ -4,9 +4,12 @@
  * SPDX-License-Identifier: Apache-2.0
  */
 
+#include <stdio.h>
 #include <zephyr/kernel.h>
 #include <zephyr/drivers/flash.h>
-#include <zephyr/mgmt/mcumgr/zephyr_groups.h>
+#include <zephyr/mgmt/mcumgr/mgmt/mgmt_defines.h>
+#include <zephyr/mgmt/mcumgr/grp/zephyr/zephyr_basic.h>
+#include <../subsys/mgmt/mcumgr/transport/include/mgmt/mcumgr/transport/smp_internal.h>
 
 #include <flash_map_backend/flash_map_backend.h>
 #include <sysflash/sysflash.h>
@@ -140,7 +143,7 @@
 {
     int mgmt_rc = MGMT_ERR_ENOTSUP;
 
-    if (hdr->nh_group == ZEPHYR_MGMT_GRP_BASE) {
+    if (hdr->nh_group == ZEPHYR_MGMT_GRP_BASIC) {
         if (hdr->nh_op == NMGR_OP_WRITE) {
 #ifdef CONFIG_BOOT_MGMT_CUSTOM_STORAGE_ERASE
             if (hdr->nh_id == ZEPHYR_MGMT_GRP_BASIC_CMD_ERASE_STORAGE) {