fix wrong kernel name bug on raspberry pi 5

[KubaTaba1uga]

Description

An error occured when I enabled the cloud-init extension with the rpi5b board. From what i understand the /boot/vmlinuz-6.6.70-current-bcm2711 file is being renamed to /boot/Image during the build process. This causes the build to fail with the error:

[🌱] Populating /boot/firmware directory [ bcm2711 ]
[🔨]   cp: cannot stat '/boot/vmlinuz-6.6.70-current-bcm2711': No such file or directory
[💥] Error 1 occurred in main shell [ at /home/taba1uga/build/lib/functions/logging/runners.sh:211
    run_host_command_logged_raw() --> lib/functions/logging/runners.sh:211
                  chroot_sdcard() --> lib/functions/logging/runners.sh:122
   post_family_tweaks__populate_boot_firmware_directory() --> config/sources/families/bcm2711.conf:185
             post_family_tweaks() --> <extension_magic>:153
          call_extension_method() --> lib/functions/general/extensions.sh:57
   install_distribution_agnostic() --> lib/functions/rootfs/distro-agnostic.sh:384
                do_with_logging() --> lib/functions/logging/section-logging.sh:81
         build_rootfs_and_image() --> lib/functions/main/rootfs-image.sh:31
   full_build_packages_rootfs_and_image() --> lib/functions/main/default-build.sh:36
          do_with_default_build() --> lib/functions/main/default-build.sh:42
         cli_standard_build_run() --> lib/functions/cli/cli-build.sh:25
        armbian_cli_run_command() --> lib/functions/cli/utils-cli.sh:136
                 cli_entrypoint() --> lib/functions/cli/entrypoint.sh:176
                           main() --> compile.sh:50

I attempted to reproduce the issue with the orangepi5 board, but the issue appears to be specific to the Raspberry Pi 5 board (rpi5b).

This is pull request fixing the bug.

GitHub issue reference:
Jira reference number [AR-9999]

How Has This Been Tested?

I Run the following build command:

./compile.sh build BOARD=rpi5b BRANCH=current BUILD_DESKTOP=no BUILD_MINIMAL=yes KERNEL_CONFIGURE=no RELEASE=bookworm KERNEL_GIT=shallow ENABLE_EXTENSIONS="cloud-init"

Which compiled succesfull. Then i flashed image to sd card and booted raspberry pi 5 using the image. I was able to log in and confirm that cloud-init is working.

Checklist:

Please delete options that are not relevant.

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules