Fix reference test tooling

Two changes:
(a) ensure PragueEOF is used for ref tests for EOF
(b) exclude an out of date test that expects TXCREATE to exist.

Signed-off-by: Danno Ferrin <danno@numisight.com>

ethereum/referencetests/src/reference-test/java/org/hyperledger/besu/ethereum/eof/EOFReferenceTestTools.java

@@ -70,9 +70,8 @@ public class EOFReferenceTestTools {
       params.ignoreAll();
     }
 
-    // Add exclusions heere
-    // params.ignore("EOFTests/efExample/broken.json");
-    // params.ignore("EOFTests/efBroken");
+    // TXCREATE still in tests, but has been removed
+    params.ignore("EOF1_undefined_opcodes_186");
   }
 
   private EOFReferenceTestTools() {

evm/src/main/java/org/hyperledger/besu/evm/EvmSpecVersion.java

@@ -154,6 +154,10 @@ public enum EvmSpecVersion {
    * @return the EVM spec version for that fork, or null if no fork matched.
    */
   public static EvmSpecVersion fromName(final String name) {
+    // TODO remove once PragueEOF settles
+    if ("prague".equalsIgnoreCase(name)) {
+      return EvmSpecVersion.PRAGUE_EOF;
+    }
     for (var version : EvmSpecVersion.values()) {
       if (version.name().equalsIgnoreCase(name)) {
         return version;