mosys: format Rust code with rustfmt

Automatically formatted using `cargo fmt --all` from Rust 1.31.0.

BUG=None
TEST=emerge-nami sys-apps/mosys

Change-Id: I0ea36e744ffe86868594bbdfc981451d5d41da22
Signed-off-by: Daniel Verkamp <dverkamp@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/1378948
Reviewed-by: Jason Clinton <jclinton@chromium.org>
3 files changed