debian: packaging improvements and fixes for Ubuntu resolute

[Chandan Jha (cjha01)]

Summary

This PR ports and adapts the Debian packaging improvements from the
qcom/debian/trixie branch into the qcom/ubuntu/resolute branch.
All changes are confined to the debian/ directory. No upstream
source files are modified.

Changes

Correctness fixes

• Fix debian/control section from non-free to contrib — the
  driver is GPL-2.0 but depends on non-free firmware at runtime
• Fix debian/copyright to add missing co-copyright holders
  (Linux Foundation, QINC) and add a separate debian/* stanza
  licensed under BSD-3-Clause
• Fix debian/changelog to reset bloated auto-generated entries
  to a clean * Initial release. with correct 1.0.3-0qli1~
  versioning scheme
• Fix debian/rules to use execute_after_dh_dkms: instead of
  override_dh_dkms: — the correct debhelper hook for
  post-processing after dh_dkms runs
• Fix debian/rules to prune dotfiles from the DKMS staged
  source tree

Package naming

• Rename binary package camx-uapi-dev → camx-linux-dev to
  follow Debian naming convention for Linux UAPI header packages
• Add Provides: camx-uapi-dev to camx-linux-dev for backwards
  compatibility with existing dependents

Packaging hygiene

• Simplify install logic using declarative .install files
  (camx-dkms.install, camx-linux-dev.install) replacing
  manual find|cpio calls in debian/rules
• Rename dkms-build.sh / dkms-clean.sh → dkms-build /
  dkms-clean and mark executable (scripts with a shebang
  don't need .sh extension or explicit bash prefix)
• Rewrite package descriptions with detailed, lintian-compliant
  text explaining CamX subsystems and what each package provides
• Wrap Build-Depends: one-per-line per Debian convention
• Drop redundant Priority: optional and Rules-Requires-Root: no
  fields (both are defaults in debhelper compat 13)
• Drop redundant Recommends: linux-headers-generic (DKMS handles
  kernel headers automatically) and overly strict versioned Depends
• Add Vcs-Browser and Vcs-Git headers pointing to the
  packaging repository
• Add debian/upstream/metadata (DEP-12) with upstream bug
  tracker and repository URLs
• Add debian/.gitignore to exclude debhelper build artifacts
• Add debian/source/options to exclude .github/ workflows
  from the Debian source package diff
• Use parallel make -j$(nproc) in dkms-build for faster builds
• Update debian/gbp.conf branch to qcom/ubuntu/resolute

Notes

• debian/changelog trailer keeps the original
  GitHub Service Bot identity and timestamp from the resolute
  branch — not replaced with a personal identity
• debian/gbp.conf uses qcom/ubuntu/resolute (not
  qcom/debian/trixie) — adapted for this branch
• The trixie backport changelog entry (1.0.3-0qli1~bpo13+1)
  is intentionally absent — it does not belong on this branch

[Loïc Minier (lool)]

Hi Chandan Jha (@cjha01), your git history looks weird; it looks like you took all my commits, and rebase them with you as the author.

What I would expect is either:

• you rebase the Ubuntu branch once to have a more recent common ancestor, then merge; merge commits should look nice
• or you just merge, and fix the delta once; your first merge will look ugly, next ones will be ok
• you start from trixie branch, and reapply remaining Ubuntu delta as new patches on top (cleanest); your history is perfectly linear and nice; perhaps you do merges in the future like I would between debian/ branches

[Chandan Jha (cjha01)]

Redone using Option 3 — your trixie commits are now kept as-is under your name. I only added 2 commits on top with the resolute-specific adaptations (gbp.conf branch name and changelog version/trailer).

[Chandan Jha (cjha01)]

#28

[Loïc Minier (lool)]

I'm not sure you can sent that as a merge though