Bug#688273: Preseed netcfg/use_autoconfig and netcfg/disable_dhcp doesn't work

[YunQiang Su <wzssyqa@gmail.com>]

Package: netcfg
Version: 1.92

I preseed like the fellow,

d-i netcfg/use_autoconfig boolean false
d-i netcfg/disable_dhcp boolean true

But it still try dhcp first.

-- 
YunQiang Su