Changes

Add libclang
Disable newlib syscalls for baremetal target
Toolchain built on an AlmaLinux 8-based host, to improve compatibility with more recent Linux distributions

rv32imcb Tool Versions

Binutils: 7c9dd840fbb6a1171a51feb08afb859288615137 (riscv-binutils-2.35-rvb) with Pirmin's bitmanip 1.00+0.93 PR patch (riscvarchive/riscv-binutils-gdb#267).
GCC: 73055647d33c0b63a3125c372019d1dac0f8ac34 (RISC-V bitmanip fork, branch riscv-gcc-10.2.0-rvb, commit 73055647d33 from 2021-07-09)
Clang/LLVM: 16.0.2 with hardening patches, unratified bitmanip extensions, support for the .option arch assembly directive, ePIC support (repo https://github.com/lowRISC/llvm-project.git, and backported fixes, branch ot-llvm-16-hardening, commit d213f6b2e0bcc561930538ef47b3b5cc900b5b17)
GDB 11.1

Binutils 2.35
GCC: 10.2.0
Clang/LLVM: 16.0.2 with hardening patches, unratified bitmanip extensions, support for the .option arch assembly directive, ePIC support (repo https://github.com/lowRISC/llvm-project.git, and backported fixes, branch ot-llvm-16-hardening, commit d213f6b2e0bcc561930538ef47b3b5cc900b5b17)
GDB 11.1