dev-haskell/uniplate: fix depends (Issue #260)

hackport generates depends for lowest ghc possible.
It's not quite correct. Wrote depends out manually for now.

Github-bug: https://github.com/gentoo-haskell/gentoo-haskell/issues/260
Reported-by: Jauhien Piatlicki

Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>