Update config.guess to support risc-v

[Xeonacid]

Fixes:

  -- Configuring incomplete, errors occurred!

  --- stderr
  /build/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/hexpatch-keystone-sys-0.9.4/keystone/llvm/cmake/config.guess: unable to guess system type

  This script, last modified 2011-08-20, has failed to recognize
  the operating system you are using. It is advised that you
  download the most up to date version of the config scripts from

    http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess;hb=HEAD
  and
    http://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub;hb=HEAD

  If the version you run (/build/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/hexpatch-keystone-sys-0.9.4/keystone/llvm/cmake/config.guess) is already up to date, please
  send the following data and any information you think might be
  pertinent to <config-patches@gnu.org> in order to provide the needed
  information to handle your system.

  config.guess timestamp = 2011-08-20

  uname -m = riscv64
  uname -r = 6.6.46-pisces
  uname -s = Linux
  uname -v = #2024.08.18.16.00+26c645731 SMP Sun Aug 18 16:38:44 UTC 2024

  /usr/bin/uname -p = unknown
  /bin/uname -X     = 

  hostinfo               = 
  /bin/universe          = 
  /usr/bin/arch -k       = 
  /bin/arch              = 
  /usr/bin/oslevel       = 
  /usr/convex/getsysinfo = 

  UNAME_MACHINE = riscv64
  UNAME_RELEASE = 6.6.46-pisces
  UNAME_SYSTEM  = Linux
  UNAME_VERSION = #2024.08.18.16.00+26c645731 SMP Sun Aug 18 16:38:44 UTC 2024
  CMake Error at llvm/cmake/modules/GetHostTriple.cmake:24 (message):
    Failed to execute
    /build/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/hexpatch-keystone-sys-0.9.4/keystone/llvm/cmake/config.guess
  Call Stack (most recent call first):
    llvm/cmake/config-ix.cmake:293 (get_host_triple)
    llvm/CMakeLists.txt:329 (include)



  thread 'main' panicked at /build/.cargo/registry/src/index.crates.io-1949cf8c6b5b557f/cmake-0.1.54/src/lib.rs:1119:5:

  command did not execute successfully, got: exit status: 1

  build script failed, must exit now
  note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...
==> ERROR:� A failure occurred in build().�