ci: remove demosoc from github ci workflow

Signed-off-by: Huaqi Fang <578567190@qq.com>

Author: fanghuaqi

.github/workflows/build.yml

@@ -28,7 +28,7 @@ jobs:
     runs-on: ubuntu-22.04
     strategy:
       matrix:
-        soc: [demosoc, evalsoc]
+        soc: [evalsoc]
         core: [ux900, ux900fd, u900, u900fd]
         boot_mode: [sd, flash]
 
@@ -79,7 +79,7 @@ jobs:
 
       # Build bootimages
       - name: Build bootimages for ${{ matrix.soc }} - ${{ matrix.core }} - ${{ matrix.boot_mode }}
-        if: ${{ !( matrix.soc == 'demosoc' && startsWith(matrix.core, 'u900')) }}
+        if: ${{ !( matrix.soc == 'evalsoc' && startsWith(matrix.core, 'u900')) }}
         run: |
           export SOC=${{ matrix.soc }} CORE=${{ matrix.core }} BOOT_MODE=${{ matrix.boot_mode }}
           echo "Generate QEMU Disk"
@@ -110,7 +110,7 @@ jobs:
 
       # Run on qemu
       - name: Run and test on qemu for ${{ matrix.soc }} - ${{ matrix.core }} - ${{ matrix.boot_mode }}
-        if: ${{ ( matrix.soc == 'evalsoc' ) }}
+        if: ${{ !( matrix.soc == 'evalsoc' && startsWith(matrix.core, 'u900')) }}
         run: |
           QEMU_PATH=$(pwd)/prebuilt_tools/linux_qemu/bin:$(pwd)/prebuilt_tools/qemu/bin
           export PATH=${QEMU_PATH}:$PATH
@@ -127,8 +127,8 @@ jobs:
           }
 
       - name: Upload bootimages for ${{ matrix.soc }} - ${{ matrix.core }} - ${{ matrix.boot_mode }}
-        if: ${{ !( matrix.soc == 'demosoc' && startsWith(matrix.core, 'u900')) }}
-        uses: actions/upload-artifact@v4
+        if: ${{ !( matrix.soc == 'evalsoc' && startsWith(matrix.core, 'u900')) }}
+        uses: actions/upload-artifact@v3
         with:
           name: bootimages_${{ matrix.soc }}_${{ matrix.core }}_${{ matrix.boot_mode }}
           path: |
@@ -137,8 +137,8 @@ jobs:
             work/${{ matrix.soc }}/buildstamp.txt
 
       - name: Upload qemu images for ${{ matrix.soc }} - ${{ matrix.core }} - ${{ matrix.boot_mode }}
-        if: ${{ ( matrix.soc == 'evalsoc' ) }}
-        uses: actions/upload-artifact@v4
+        if: ${{ !( matrix.soc == 'evalsoc' && startsWith(matrix.core, 'u900')) }}
+        uses: actions/upload-artifact@v3
         with:
           name: qemu_images_${{ matrix.soc }}_${{ matrix.core }}_${{ matrix.boot_mode }}
           path: |