crypto: crypto4xx - fix type mismatch compiler error

This patch fixes a type mismatch error that I accidentally
introduced when I moved and refactored the dynamic_contents
helpers.

Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/amcc/crypto4xx_sa.h

@@ -266,9 +266,9 @@ get_dynamic_sa_offset_state_ptr_field(struct dynamic_sa_ctl *cts)
 	return sizeof(struct dynamic_sa_ctl) + offset * 4;
 }
 
-static inline u8 *get_dynamic_sa_key_field(struct dynamic_sa_ctl *cts)
+static inline u32 *get_dynamic_sa_key_field(struct dynamic_sa_ctl *cts)
 {
-	return (u8 *) ((unsigned long)cts + sizeof(struct dynamic_sa_ctl));
+	return (u32 *) ((unsigned long)cts + sizeof(struct dynamic_sa_ctl));
 }
 
 #endif