Bump rand_os version number

I missed that rand got refactored, and the fuchsia update
in rust-random#706 should have triggered a release for rand_os, not
rand.

Author: erickt

rand_os/CHANGELOG.md

@@ -5,6 +5,10 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 
+## [0.1.2] - 2019-01-28
+### Changes
+- Fuchsia: Replaced fuchsia-zircon with fuchsia-cprng
+
 ## [0.1.1] - 2019-01-08
 ### Additions
 - Add support for x86_64-fortanix-unknown-sgx target (#670)

rand_os/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "rand_os"
-version = "0.1.1"
+version = "0.1.2"
 authors = ["The Rand Project Developers"]
 license = "MIT/Apache-2.0"
 readme = "README.md"