Bug#746662: add install-time option to place grub-efi in removable media path

[Leif Lindholm <unixsmurf@gmail.com>]

Package: debian-installer
Version: 20140316
Severity: wishlist

There are many platforms out there with broken UEFI implementations.
It would be useful to in the UEFI installer have a way of instructing
the installer to place GRUB in the "removable media loader path" (as
defined by the UEFI specification for the given architecture).

This could be similar to the traditional "do you want me to update the
MBR with an entry for your boot loader" dialog.