Merge #17442: fix Typo: "merkelRoot" -> "merkleRoot"

eb880f092b fix Typo: "merkelRoot" -> "merkleRoot" (ianliu)

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ACKs for top commit:
  practicalswift:
    ACK eb880f092b but please change from `merkleRootofHashes` to `merkleRootOfHashes`

Tree-SHA512: ada9edceee19da5678bf35e1258163e7102fe176dc5cf40acaa1468fa8b2801494f8bf65d5359dcd0054fbc22f07fdc98d6208cfdb54dd9171fd45c89d71e098

src/test/merkle_tests.cpp

@@ -345,8 +345,8 @@ BOOST_AUTO_TEST_CASE(merkle_test_BlockWitness)
     hashes[0].SetNull();
     hashes[1] = block.vtx[1]->GetHash();
 
-    uint256 merkelRootofHashes = ComputeMerkleRoot(hashes);
+    uint256 merkleRootofHashes = ComputeMerkleRoot(hashes);
 
-    BOOST_CHECK_EQUAL(merkelRootofHashes, blockWitness);
+    BOOST_CHECK_EQUAL(merkleRootofHashes, blockWitness);
 }
 BOOST_AUTO_TEST_SUITE_END()