crypto: aspeed - Fix modular aspeed-acry

When aspeed-acry is enabled as a module it doesn't get built at
all.  Fix this by adding it to obj-m.

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/Makefile

@@ -6,4 +6,6 @@ aspeed_crypto-objs := aspeed-hace.o	\
 		      $(hace-hash-y)	\
 		      $(hace-crypto-y)
 
-obj-$(CONFIG_CRYPTO_DEV_ASPEED_ACRY) += aspeed-acry.o
+aspeed_acry-$(CONFIG_CRYPTO_DEV_ASPEED_ACRY) += aspeed-acry.o
+
+obj-$(CONFIG_CRYPTO_DEV_ASPEED) += $(aspeed_acry-y)