crypto: ecdh - fix ecdh-nist-p192's entry in testmgr

Add a comment that p192 will fail to register in FIPS mode.

Fix ecdh-nist-p192's entry in testmgr by removing the ifdefs
and not setting fips_allowed.

Signed-off-by: Hui Tang <tanghui20@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/crypto/ecdh.c b/crypto/ecdh.c
index 07eb34f..1974675 100644
--- a/crypto/ecdh.c
+++ b/crypto/ecdh.c
@@ -179,6 +179,7 @@ static int ecdh_init(void)
 {
 	int ret;
 
+	/* NIST p192 will fail to register in FIPS mode */
 	ret = crypto_register_kpp(&ecdh_nist_p192);
 	ecdh_nist_p192_registered = ret == 0;