lib: crypt: fix selecting a non-existent option

The option SHA256_ALGO does not exist. Remove selecting it.

Fixes: 26dd9936574 ("lib: add crypt subsystem")
Signed-off-by: Oleksandr Suvorov <oleksandr.suvorov@foundries.io>
diff --git a/lib/crypt/Kconfig b/lib/crypt/Kconfig
index a59d5c7..22af683 100644
--- a/lib/crypt/Kconfig
+++ b/lib/crypt/Kconfig
@@ -12,7 +12,6 @@
 config CRYPT_PW_SHA256
 	bool "Provide sha256crypt"
 	select SHA256
-	select SHA256_ALGO
 	help
 	  Enables support for the sha256crypt password-hashing algorithm.
 	  The prefix is "$5$".