MAINTAINERS: add missing Cryptography entry

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Acked-by: Daniel P. Berrange <berrange@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>

MAINTAINERS

@@ -1561,6 +1561,7 @@ S: Maintained
 F: crypto/
 F: include/crypto/
 F: tests/test-crypto-*
+F: tests/benchmark-crypto-*
 F: qemu.sasl
 
 Coroutines