crypto: caam - avoid double inclusion in desc_constr.h

Signed-off-by: Horia Geantă <horia.geanta@nxp.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/caam/desc_constr.h

@@ -4,6 +4,9 @@
  * Copyright 2008-2012 Freescale Semiconductor, Inc.
  */
 
+#ifndef DESC_CONSTR_H
+#define DESC_CONSTR_H
+
 #include "desc.h"
 #include "regs.h"
 
@@ -491,3 +494,5 @@ static inline int desc_inline_query(unsigned int sd_base_len,
 
 	return (rem_bytes >= 0) ? 0 : -1;
 }
+
+#endif /* DESC_CONSTR_H */