fix: force MMQ kernels to bypass rocBLAS TensileLibrary on gfx1103

ROCm 7.2 rocBLAS has no TensileLibrary for gfx1103 (RDNA3 iGPU) and
the gfx1102 library kernels crash due to register file differences.
Force MMQ (matrix multiply quantized) kernels which are compiled by
hipcc for the actual target arch, bypassing rocBLAS entirely.

This matches how Ollama successfully runs on AMD 780M / gfx1103.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

.devops/rocm.Dockerfile

@@ -38,6 +38,7 @@ RUN HIPCXX="$(hipconfig -l)/clang" HIP_PATH="$(hipconfig -R)" \
     cmake -S . -B build \
         -DGGML_HIP=ON \
         -DGGML_HIP_ROCWMMA_FATTN=OFF \
+        -DGGML_CUDA_FORCE_MMQ=ON \
         -DAMDGPU_TARGETS="$ROCM_DOCKER_ARCH" \
         -DGGML_BACKEND_DL=ON -DGGML_CPU_ALL_VARIANTS=ON \
         -DCMAKE_BUILD_TYPE=Release -DLLAMA_BUILD_TESTS=OFF \