chore: Run RDMSR test on new x86_64 instance types

Add m7i.metal-{24,48}xl and m7a.metal-48xl to RDMSR test

Signed-off-by: Takahiro Itazuri <[email protected]>

Author: zulinx86

.buildkite/pipeline_cpu_template.py

@@ -26,7 +26,15 @@ class BkStep(str, Enum):
             "tools/devtool -y test --no-build -- -m nonci -n4 --dist worksteal integration_tests/functional/test_cpu_features_x86_64.py -k 'test_cpu_rdmsr' "
         ],
         BkStep.LABEL: "📖 rdmsr",
-        "instances": ["c5n.metal", "m5n.metal", "m6a.metal", "m6i.metal"],
+        "instances": [
+            "c5n.metal",
+            "m5n.metal",
+            "m6a.metal",
+            "m6i.metal",
+            "m7a.metal-48xl",
+            "m7i.metal-24xl",
+            "m7i.metal-48xl"
+        ],
     },
     "fingerprint": {
         BkStep.COMMAND: [