crypto: aspeed - Enable compile testing

This driver compile tests just fine.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Neal Liu <neal_liu@aspeedtech.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/aspeed/Kconfig

 config CRYPTO_DEV_ASPEED
 	tristate "Support for Aspeed cryptographic engine driver"
-	depends on ARCH_ASPEED
+	depends on ARCH_ASPEED || COMPILE_TEST
 	help
 	  Hash and Crypto Engine (HACE) is designed to accelerate the
 	  throughput of hash data digest, encryption and decryption.