Windows gpu enable cpu

Author: Gioee

.github/workflows/main.yml

@@ -34,7 +34,7 @@ jobs:
           - os: windows-latest
             arch: x86_64
             name: windows-gpu
-            make: LLAMA="-DGGML_BACKEND_DL=ON -DGGML_NATIVE=OFF -DGGML_CPU=OFF"
+            make: LLAMA="-DGGML_BACKEND_DL=ON -DGGML_NATIVE=OFF -DGGML_CPU=ON"
 
           # Android builds
           - os: ubuntu-latest