crypto: ecdh - fix typo of P-192 b value

Fix the b value to be compliant with FIPS 186-4 D.1.2.1. This fix is
required to make sure the SP800-56A public key test passes for P-192.
Signed-off-by: Stephan Mueller <smueller@chronox.de>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

crypto/ecc_curve_defs.h

@@ -27,7 +27,7 @@ static u64 nist_p192_p[] = { 0xFFFFFFFFFFFFFFFFull, 0xFFFFFFFFFFFFFFFEull,
 static u64 nist_p192_n[] = { 0x146BC9B1B4D22831ull, 0xFFFFFFFF99DEF836ull,
 				0xFFFFFFFFFFFFFFFFull };
 static u64 nist_p192_a[] = { 0xFFFFFFFFFFFFFFFCull, 0xFFFFFFFFFFFFFFFEull,
-				0xFFFFFFFFFFFFFFFEull };
+				0xFFFFFFFFFFFFFFFFull };
 static u64 nist_p192_b[] = { 0xFEB8DEECC146B9B1ull, 0x0FA7E9AB72243049ull,
 				0x64210519E59C80E7ull };
 static struct ecc_curve nist_p192 = {