debug: Revert ASSERT options dependency

f4df23c9 added dependency on ASSERT to some options prefixed
with ASSERT_ assuming that they are no used elsewhere. Turned
out that there are subsystem specific assert macros (e.g. BT_ASSERT)
which relies on those options. Removing the dependency.

Signed-off-by: Krzysztof Chruscinski <krzysztof.chruscinski@nordicsemi.no>