Snippets for whisper.cpp 1.9.1 from Alpine ppc64le

Sourced from https://build.alpinelinux.org/buildlogs/build-edge-ppc64le/testing/whisper.cpp/whisper.cpp-1.9.1-r0.log.

• /home/buildozer/aports/testing/whisper.cpp/src/whisper.cpp-1.9.1/ggml/src/ggml-cpu/arch/powerpc/quants.c:146:15: warning: unused variable 'nb' [-Wunused-variable]
    146 |     const int nb = n / qk;
        |               ^~
  

• /home/buildozer/aports/testing/whisper.cpp/src/whisper.cpp-1.9.1/ggml/src/ggml-cpu/arch/powerpc/quants.c:216:15: warning: unused variable 'nb' [-Wunused-variable]
    216 |     const int nb = n / qk;
        |               ^~
  

• /home/buildozer/aports/testing/whisper.cpp/src/whisper.cpp-1.9.1/ggml/src/ggml-cpu/arch/powerpc/quants.c:293:15: warning: unused variable 'nb' [-Wunused-variable]
    293 |     const int nb = n / QK_MXFP4;
        |               ^~
  

• /home/buildozer/aports/testing/whisper.cpp/src/whisper.cpp-1.9.1/ggml/src/ggml-cpu/arch/powerpc/quants.c:349:15: warning: unused variable 'nb' [-Wunused-variable]
    349 |     const int nb = n / qk;
        |               ^~