Revert "crypto: testmgr - Disable rfc4543 test"

This reverts commit 9b9f9296a7b73fbafe0a0a6f2494eaadd97f9f73 as
all in-kernel implementations of GCM have been converted to the
new AEAD interface, meaning that they should now pass the updated
rfc4543 test.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/testmgr.c b/crypto/testmgr.c
index 009714d..ccd19cf 100644
--- a/crypto/testmgr.c
+++ b/crypto/testmgr.c
@@ -3372,7 +3372,7 @@
 			}
 		}
 	}, {
-		.alg = "rfc4543(gcm(aes))-disabled",
+		.alg = "rfc4543(gcm(aes))",
 		.test = alg_test_aead,
 		.suite = {
 			.aead = {