change CI config

Author: abhishek-iitmadras

.github/workflows/linux_qemu.yml

@@ -42,15 +42,15 @@ jobs:
               "ppc64le",
               "powerpc64le-linux-gnu",
               "ppc64le/ubuntu:22.04",
-              "-Dallow-noblas=true",
+              "-Dallow-noblas=true -Dcpu-dispatch=vsx,vsx2,vsx3",
               "test_kind or test_multiarray or test_simd or test_umath or test_ufunc",
               "ppc64le"
             ]
           - [
               "ppc64le - baseline(Power9)",
               "powerpc64le-linux-gnu",
               "ppc64le/ubuntu:22.04",
-              "-Dallow-noblas=true -Dcpu-baseline=vsx3",
+              "-Dallow-noblas=true -Dcpu-baseline=vsx3 -Dcpu-dispatch=vsx,vsx2,vsx3",
               "test_kind or test_multiarray or test_simd or test_umath or test_ufunc",
               "ppc64le"
             ]