Update by the debian based ota

Hi
refer to this post.
there are kernel and kernel_dtb partition in the bl_only_payload blob.
but, mine does not contain them.
so, we guess that may be some thing wrong with our bl_only_payload, how to generate a good one?
we expect that tnspec should be 3701-300-0004–1–jetson-agx-orin-devkit-.

FYI
the following
bl_update_payload came from kernel_only_payload of nvidia-l4t-kernel_5.10.104-tegra-35.3.1-20230319081403_arm64.deb

./BUP_generator.py -c /tmp/bl_update_payload 
BLOB PATH:
/tmp/bl_update_payload

BLOB HEADER:
       Magic: NVIDIA__BLOB__V3
     Version: v3.1-2022.6-0 (0x01030622)
   Blob Size: 46,305,421 bytes
 Header Size: 48 bytes
 Entry Count: 10 partition(s)
        Type: 0 (0 for update, 1 for BMP)
Uncompressed
   Blob Size: 46,305,421 bytes
   Accessory: 0x0000000000000000

ENTRY TABLE:
| part_name  |  offset  | part_size | version | op_mode |                    tnspec                   | 
|     kernel |     1888 |  43065344 |   3531  |    0    |                                             | 
| kernel-dtb | 43067232 |    249062 |   3531  |    0    | 3701-000-0002--1-0-holoscan-devkit-         | 
| kernel-dtb | 43316294 |    420844 |   3531  |    0    | 3701-000-0005--1-0-jetson-agx-orin-devkit-  | 
| kernel-dtb | 43737138 |    420844 |   3531  |    0    | 3701-300-0000--1-0-jetson-agx-orin-devkit-  | 
| kernel-dtb | 44157982 |    420839 |   3531  |    0    | 3701-300-0004--1-0-jetson-agx-orin-devkit-  | 
| kernel-dtb | 44578821 |    344703 |   3531  |    0    | 3767-000-0000--1-0-jetson-orin-nano-devkit- | 
| kernel-dtb | 44923524 |    345391 |   3531  |    0    | 3767-000-0001--1-0-jetson-orin-nano-devkit- | 
| kernel-dtb | 45268915 |    345518 |   3531  |    0    | 3767-000-0003--1-0-jetson-orin-nano-devkit- | 
| kernel-dtb | 45614433 |    345470 |   3531  |    0    | 3767-000-0004--1-0-jetson-orin-nano-devkit- | 
| kernel-dtb | 45959903 |    345518 |   3531  |    0    | 3767-000-0005--1-0-jetson-orin-nano-devkit- |