Aligned the package layout with the concurrent Debian packaging
conventions. Moved package files under 'debian/all/' to avoid
duplication across OS builds and removed legacy paths under 'debian/'.
Updated related build references to ensure compatibility across all
supported OS codenames.for Bullseye
Test Plan:
PASS master bullseye build
Story: 2011360
Task: 53135
Change-Id: Ibd2011d2aa3f7c10f03d962642ea3248e7076a51
Signed-off-by: Abhinav Ayyapasetti <ayyapasetti.abhinav@windriver.com>