crypto: Make Open Firmware device id constant

From: Márton Németh <nm127@freemail.hu>

The match_table field of the struct of_device_id is constant in <linux/of_platform.h>
so it is worth to make the initialization data also constant.

The semantic match that finds this kind of pattern is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@r@
disable decl_init,const_decl_init;
identifier I1, I2, x;
@@
	struct I1 {
	  ...
	  const struct I2 *x;
	  ...
	};
@s@
identifier r.I1, y;
identifier r.x, E;
@@
	struct I1 y = {
	  .x = E,
	};
@c@
identifier r.I2;
identifier s.E;
@@
	const struct I2 E[] = ... ;
@Depends on !c@
identifier r.I2;
identifier s.E;
@@
+	const
	struct I2 E[] = ...;
// </smpl>

Signed-off-by: Márton Németh <nm127@freemail.hu>
Cc: Julia Lawall <julia@diku.dk>
Cc: cocci@diku.dk
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/amcc/crypto4xx_core.c

@@ -1274,7 +1274,7 @@ static int __exit crypto4xx_remove(struct of_device *ofdev)
 	return 0;
 }
 
-static struct of_device_id crypto4xx_match[] = {
+static const struct of_device_id crypto4xx_match[] = {
 	{ .compatible      = "amcc,ppc4xx-crypto",},
 	{ },
 };

drivers/crypto/talitos.c

@@ -1958,7 +1958,7 @@ static int talitos_probe(struct of_device *ofdev,
 	return err;
 }
 
-static struct of_device_id talitos_match[] = {
+static const struct of_device_id talitos_match[] = {
 	{
 		.compatible = "fsl,sec2.0",
 	},