powerpc/crypto: Build files for the nx device driver

These files support configuring and building the nx device driver.

Signed-off-by: Kent Yoder <key@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
diff --git a/drivers/crypto/Kconfig b/drivers/crypto/Kconfig
index ab9abb4..4319248 100644
--- a/drivers/crypto/Kconfig
+++ b/drivers/crypto/Kconfig
@@ -295,4 +295,21 @@
 	  To compile this driver as a module, choose M here: the module
 	  will be called tegra-aes.
 
+config CRYPTO_DEV_NX
+	tristate "Support for Power7+ in-Nest cryptographic accleration"
+	depends on PPC64 && IBMVIO
+	select CRYPTO_AES
+	select CRYPTO_CBC
+	select CRYPTO_ECB
+	select CRYPTO_CCM
+	select CRYPTO_GCM
+	select CRYPTO_AUTHENC
+	select CRYPTO_XCBC
+	select CRYPTO_SHA256
+	select CRYPTO_SHA512
+	help
+	  Support for Power7+ in-Nest cryptographic acceleration. This
+	  module supports acceleration for AES and SHA2 algorithms. If you
+	  choose 'M' here, this module will be called nx_crypto.
+
 endif # CRYPTO_HW