efi: Update the URLs for efibootmgr
efi: Update the URLs for efibootmgr

Matt Domsch changed the dell page to point to the new upstream quite
some time ago; kernel should reflect that here as well.

Cc: Matt Domsch <04e96a82b027a3325dae0e2e6c77a776e282ec67@dell.com>
Signed-off-by: Peter Jones <2e0a021e603479ff81838c00c3b770daca4e0214@redhat.com>
Signed-off-by: Ricardo Neri <b0ea9152ea2026377af95cd4fdb162e220f5b6e2@linux.intel.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs