* Makefile.am: Add util/bash-completion.d directory
* configure.ac: Likewise.
* util/bash-completion.d/Makefile.am: New file.
* util/bash-completion.d/grub-completion.bash.in: Likewise.
* Makefile.am: Add util/bash-completion.d directory
* configure.ac: Likewise.
* util/bash-completion.d/Makefile.am: New file.
* util/bash-completion.d/grub-completion.bash.in: Likewise.