Revert "vlc: fix some configure options"

This reverts commit 02004773.

The change of configuration option from --{enable,disable}-* to
--{with,without} was made because we autoreconf vlc, but some vlc m4
functions are overriden by functions coming from our pkg.m4. An
upcoming patch from Arnout fixes the problem in a better way by
renaming the problematic macro so that they have a different name
between their vlc specific variants and the pkg.m4 variants.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>