linux-2.4.6-pre6: numerous dep_{bool,tristate} $CONFIG_ARCH_xxx bugs

["Adam J. Richter" <adam@yggdrasil.com>]

	The Config.in files in linux-2.4.6-pre6 have at least 28 cases
where a dep_bool or dep_tristate of the following form:

	dep_bool CONFIG_SOMETHING $CONFIG_ARCH_somearch

	The problem with this is that, unlike most configuration variables,
the $CONFIG_ARCH_xxxx variables are often not set to "n" when they are
not selected (they are often just not defined, for example, when they
are archectures for a completely different CPU type).  When those variables
are not defined, that is essentially equivalent to passing "y" to dep_bool,
and the user is incorrectly asked about these facilities.

	I will put together patch to convert this to ugly but correct
"if then; ... ; fi" statements later today if nobody has any better
suggestions.

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