refine mini case scope

Signed-off-by: Zhu, Zufang <zufang.zhu@intel.com>

Author: zufangzhu

tests/test_fp8_gemm_onednn.py

@@ -22,6 +22,9 @@
 
 #override pytest parameters when enable mini pytest
 MINI_PYTEST_PARAMS = {
+    "test_fp8_gemm_w8a16": {
+        "mnk_factors": MINI_MNK_FACTORS[:1],
+    },
     "test_fp8_gemm_per_tensor": {
         "mnk_factors": MINI_MNK_FACTORS,
     },

tests/test_int4_gemm_onednn.py

@@ -22,7 +22,7 @@
 ]
 
 MINI_PYTEST_PARAMS = {
-    "test_int4_gemm": {
+    "default": {
         "mnk_factors": MINI_MNK_FACTORS,
     },
 }