Update rand_core requirement from 0.6.4 to 0.9.0 in /nrf-hal-common (#…

…511)

* Update rand_core requirement from 0.6.4 to 0.9.0 in /nrf-hal-common

Updates the requirements on [rand_core](https://github.com/rust-random/rand) to permit the latest version.
- [Release notes](https://github.com/rust-random/rand/releases)
- [Changelog](https://github.com/rust-random/rand/blob/master/CHANGELOG.md)
- [Commits](rust-random/rand@rand_core-0.6.4...0.9.0)

---
updated-dependencies:
- dependency-name: rand_core
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

* Fix build after rand_core update.

* Update rand_core in example too.

---------

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Andrew Walbran <[email protected]>

examples/ccm-demo/Cargo.toml

@@ -9,7 +9,7 @@ publish = false
 cortex-m = { version = "0.7.3", features = ["critical-section-single-core"] }
 cortex-m-rt = "0.7.0"
 rtt-target = "0.6.0"
-rand_core = "0.6.3"
+rand_core = "0.9.0"
 
 nrf52805-hal = { path = "../../nrf52805-hal", features = ["rt"], optional = true }
 nrf52810-hal = { path = "../../nrf52810-hal", features = ["rt"], optional = true }

nrf-hal-common/Cargo.toml

@@ -28,7 +28,7 @@ embedded-io = "0.6.1"
 embedded-storage = "0.3.1"
 fixed = "1.25.1"
 nb = "1.1.0"
-rand_core = "0.6.4"
+rand_core = "0.9.0"
 
 [dependencies.void]
 default-features = false

nrf-hal-common/src/rng.rs

@@ -85,11 +85,6 @@ impl RngCore for Rng {
     fn fill_bytes(&mut self, dest: &mut [u8]) {
         self.random(dest)
     }
-
-    fn try_fill_bytes(&mut self, dest: &mut [u8]) -> Result<(), rand_core::Error> {
-        self.fill_bytes(dest);
-        Ok(())
-    }
 }
 
 impl CryptoRng for Rng {}