Update CHANGELOG with TRNG addition

imxrt-hal/CHANGELOG.md

@@ -8,6 +8,9 @@
   continues to track time while the SNVS low-power domain remains powered.
 - Add ADC channels. The channels implement the `embedded-hal::adc::Oneshot`
   trait.
+- Preliminary support for the TRNG, with an implementation of embedded_hal's
+  `rng::Read` trait. Includes support for `rand_core::RngCore` behind the
+  optional `"rand_core"` feature.
 
 ## [0.4.1] 2020-09-23
 
@@ -175,4 +178,4 @@ Prior releases were not tracked with a changelog entry.
 [0.4.1]: https://github.com/imxrt-rs/imxrt-rs/compare/0.4.0...0.4.1
 [0.4.0]: https://github.com/imxrt-rs/imxrt-rs/compare/0.3.0...0.4.0
 [0.3.1]: https://github.com/imxrt-rs/imxrt-rs/compare/0.3.0...0.3.1
-[0.3.0]: https://github.com/imxrt-rs/imxrt-rs/compare/0.2.1...0.3.0
+[0.3.0]: https://github.com/imxrt-rs/imxrt-rs/compare/0.2.1...0.3.0