Update nitrokey crate to 0.4.0

This change finally updates the version of the nitrokey crate that we
consume to 0.4.0. Along with that we update rand_core, one of its
dependencies, to 0.5.1. Further more we add cfg-if in version 0.1.10 and
getrandom in version 0.1.13, both of which are now new (non-development)
dependencies.

Import subrepo nitrokey/:nitrokey at e81057037e9b4f370b64c0a030a725bc6bdfb870
Import subrepo cfg-if/:cfg-if at 4484a6faf816ff8058088ad857b0c6bb2f4b02b2
Import subrepo getrandom/:getrandom at d661aa7e1b8cc80b47dabe3d2135b3b47d2858af
Import subrepo rand/:rand at d877ed528248b52d947e0484364a4e1ae59ca502

1 files changed, 1 insertions, 1 deletions

diff --git a/rand/rand_xoshiro/src/common.rs b/rand/rand_xoshiro/src/common.rs
index 9ee09e2..b188dd6 100644
--- a/rand/rand_xoshiro/src/common.rs
+++ b/rand/rand_xoshiro/src/common.rs
@@ -9,7 +9,7 @@
 /// Initialize a RNG from a `u64` seed using `SplitMix64`.
 macro_rules! from_splitmix {
     ($seed:expr) => { {
-        let mut rng = ::SplitMix64::seed_from_u64($seed);
+        let mut rng = crate::SplitMix64::seed_from_u64($seed);
         Self::from_rng(&mut rng).unwrap()
     } }
 }