fix(kernel-debs): allow 'dwarves' as alternative for 'pahole' in headers Depends

Older releases (Debian buster/bullseye, Ubuntu focal) do not have a
standalone 'pahole' package — pahole ships inside the 'dwarves'
package there. The headers .deb's unsatisfiable 'Depends: pahole'
broke apt install on these older releases:

    E: Unable to locate package pahole
    E: Unable to correct problems, you have held broken packages.

Reproduces with e.g. helios4 / bullseye / edge.

Use 'pahole | dwarves' alternative dependency so apt picks 'pahole'
on modern releases and falls back to 'dwarves' on the older ones
(on bookworm+/jammy+ 'dwarves' is a transitional package that pulls
'pahole', so the alternative remains satisfiable everywhere).

This also lets us drop the explicit pre-install of pahole from
install_distribution_agnostic(): installing the headers .deb pulls
in pahole/dwarves automatically via Depends.

When buster/bullseye/focal support is dropped, the alternative can
be simplified back to a plain 'pahole'.

Assisted-by: Claude:claude-opus-4.7

Author: iav

lib/functions/compilation/kernel-debs.sh

@@ -511,6 +511,9 @@ function kernel_package_callback_linux_headers() {
 
 	# Generate a control file
 	# TODO: libssl-dev is only required if we're signing modules, which is a kernel .config option.
+	# Note: 'pahole | dwarves' alternative — older releases (buster/bullseye/focal) ship pahole inside the
+	# 'dwarves' package; standalone 'pahole' exists from bookworm/jammy onward. When support for these
+	# releases is dropped, simplify to 'pahole'.
 	cat <<- CONTROL_FILE > "${package_DEBIAN_dir}/control"
 		Version: ${artifact_version}
 		Maintainer: ${MAINTAINER} <${MAINTAINERMAIL}>
@@ -519,7 +522,7 @@ function kernel_package_callback_linux_headers() {
 		Architecture: ${ARCH}
 		Priority: optional
 		Provides: linux-headers (= ${kernel_version}), linux-headers-armbian, armbian-$BRANCH
-		Depends: make, gcc, libc6-dev, bison, flex, libssl-dev, libelf-dev, pahole
+		Depends: make, gcc, libc6-dev, bison, flex, libssl-dev, libelf-dev, pahole | dwarves
 		Description: Armbian Linux $BRANCH headers ${kernel_version_family}
 		 This package provides kernel header files for ${kernel_version_family}
 		 .

lib/functions/rootfs/distro-agnostic.sh

@@ -378,7 +378,6 @@ function install_distribution_agnostic() {
 
 		if [[ "${KERNEL_HAS_WORKING_HEADERS:-"no"}" == "yes" ]]; then
 			if [[ $INSTALL_HEADERS == yes ]]; then # @TODO remove? might be a good idea to always install headers.
-				chroot_sdcard_apt_get_install "pahole"
 				install_artifact_deb_chroot "linux-headers"
 			fi
 		fi