Fix typo in test name

Change-Id: Iaeb99793dca4f8a50f10e2601133ab09157e3042
Reviewed-on: https://boringssl-review.googlesource.com/c/boringssl/+/98109
Commit-Queue: David Benjamin <davidben@google.com>
Auto-Submit: David Benjamin <davidben@google.com>
Reviewed-by: Xiangfei Ding <xfding@google.com>
Presubmit-BoringSSL-Verified: boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com <boringssl-scoped@luci-project-accounts.iam.gserviceaccount.com>

crypto/ecdh/ecdh_test.cc

diff --git a/crypto/ecdh/ecdh_test.cc b/crypto/ecdh/ecdh_test.cc
index 9a81f4a..c58cfc7 100644
--- a/crypto/ecdh/ecdh_test.cc
+++ b/crypto/ecdh/ecdh_test.cc
@@ -190,7 +190,7 @@
                 RunWycheproofTest);
 }
 
-TEST(ECDHTest, WycheproofP512) {
+TEST(ECDHTest, WycheproofP521) {
   FileTestGTest("third_party/wycheproof_testvectors/ecdh_secp521r1_test.txt",
                 RunWycheproofTest);
 }