test: print all missing cpuid leafs in test_cpu_template_helper

So that we get a full picture of what the difference is when
troubleshooting.

Signed-off-by: Pablo Barbáchano <pablob@amazon.com>

Author: pb8o

tests/integration_tests/functional/test_cpu_template_helper.py

@@ -265,9 +265,13 @@ def test_cpu_config_dump_vs_actual(
 
     # Compare CPUID between actual and dumped CPU config.
     # Verify all the actual CPUIDs are covered and match with the dumped one.
+    keys_not_in_dump = {}
     for key, actual in actual_cpu_config["cpuid"].items():
         if (key[0], key[1]) in UNAVAILABLE_CPUID_ON_DUMP_LIST:
             continue
+        if key not in dump_cpu_config["cpuid"]:
+            keys_not_in_dump[key] = actual_cpu_config["cpuid"][key]
+            continue
         dump = dump_cpu_config["cpuid"][key]
 
         if key in CPUID_EXCEPTION_LIST:
@@ -278,6 +282,8 @@ def test_cpu_config_dump_vs_actual(
             f"{actual=:#034b} vs. {dump=:#034b}"
         )
 
+    assert len(keys_not_in_dump) == 0
+
     # Verify all CPUID on the dumped CPU config are covered in actual one.
     for key, dump in dump_cpu_config["cpuid"].items():
         actual = actual_cpu_config["cpuid"].get(key)