riscv: bump MSRV to 1.67.0

Bumps the MSRV to 1.67.0 for the name change of the integer log
functions from `log` to `ilog` variants.

Author: rmsyn

.github/workflows/riscv.yaml

@@ -11,8 +11,8 @@ jobs:
   build-riscv:
     strategy:
       matrix:
-        # All generated code should be running on stable now, MRSV is 1.61.0
-        toolchain: [ stable, nightly, 1.61.0 ]
+        # All generated code should be running on stable now, MRSV is 1.67.0
+        toolchain: [ stable, nightly, 1.67.0 ]
         target:
           - riscv32i-unknown-none-elf
           - riscv32imc-unknown-none-elf

riscv/CHANGELOG.md

@@ -14,6 +14,7 @@ and this project adheres to [Semantic Versioning](http://semver.org/).
 - Add `senvcfg` CSR
 - Add `scontext` CSR
 - Add `mconfigptr` CSR
+- Bump MSRV to 1.67.0 for `log` to `ilog` name change
 
 ### Changed
 

riscv/Cargo.toml

@@ -2,7 +2,7 @@
 name = "riscv"
 version = "0.13.0"
 edition = "2021"
-rust-version = "1.61"
+rust-version = "1.67"
 repository = "https://github.com/rust-embedded/riscv"
 authors = ["The RISC-V Team <[email protected]>"]
 categories = ["embedded", "hardware-support", "no-std"]