fix

Author: qitas

.github/workflows/br-external-stm32mp1.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   build-all:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-20.04
     strategy:
       matrix:
         config: [dongshanpiseven_core_defconfig,dongshanpiseven_standard-aiot_defconfig]
@@ -18,8 +18,8 @@ jobs:
 
       - uses: actions/checkout@v4
         with:
-          repository: SoCXin/buildroot
-          ref: st/2021.02
+          repository: DongshanPI/Buildroot-ST
+          ref: master
           path: buildroot
 
       - name: Install buildroot dependencies