kernel: enable pcrypt

This is a powerful API for parallel crypto from which many other modules
can benefit. It only winds up being turned on on SMP systems, which
means this adds 0 bytes to the kernel on tiny machines, while only
adding a small bit to SMP systems for big performance improvements.

Signed-off-by: Jason A. Donenfeld <[email protected]>

target/linux/generic/config-3.18

@@ -762,7 +762,7 @@ CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
 # CONFIG_CRYPTO_PCBC is not set
 # CONFIG_CRYPTO_PCOMP is not set
 # CONFIG_CRYPTO_PCOMP2 is not set
-# CONFIG_CRYPTO_PCRYPT is not set
+CONFIG_CRYPTO_PCRYPT=y
 # CONFIG_CRYPTO_RMD128 is not set
 # CONFIG_CRYPTO_RMD160 is not set
 # CONFIG_CRYPTO_RMD256 is not set

target/linux/generic/config-4.1

@@ -792,7 +792,7 @@ CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
 # CONFIG_CRYPTO_PCBC is not set
 # CONFIG_CRYPTO_PCOMP is not set
 # CONFIG_CRYPTO_PCOMP2 is not set
-# CONFIG_CRYPTO_PCRYPT is not set
+CONFIG_CRYPTO_PCRYPT=y
 # CONFIG_CRYPTO_RMD128 is not set
 # CONFIG_CRYPTO_RMD160 is not set
 # CONFIG_CRYPTO_RMD256 is not set

target/linux/generic/config-4.4

@@ -791,7 +791,7 @@ CONFIG_CRYPTO_MANAGER_DISABLE_TESTS=y
 # CONFIG_CRYPTO_PCBC is not set
 # CONFIG_CRYPTO_PCOMP is not set
 # CONFIG_CRYPTO_PCOMP2 is not set
-# CONFIG_CRYPTO_PCRYPT is not set
+CONFIG_CRYPTO_PCRYPT=y
 # CONFIG_CRYPTO_POLY1305 is not set
 # CONFIG_CRYPTO_RMD128 is not set
 # CONFIG_CRYPTO_RMD160 is not set