debug-generator: enable custom systemd.debug_shell tty
    
    (cherry picked from commit 93912e872fb14e9c372e090409e429084a6450f5)
    
    Resolves: #1723722
    
    patch_name: 0293-debug-generator-enable-custom-systemd.debug_shell-tt.patch
    present_in_specfile: true
    location_in_specfile: 293
    squash_commits: true