crypto: caam - Fix first parameter to caam_init_rng

Found by the kbuild test robot, the first argument to caam_init_rng
has a spurious ampersand.

Reported-by: kbuild test robot <fengguang.wu@intel.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
diff --git a/drivers/crypto/caam/caamrng.c b/drivers/crypto/caam/caamrng.c
index 403d8d5..3529b540 100644
--- a/drivers/crypto/caam/caamrng.c
+++ b/drivers/crypto/caam/caamrng.c
@@ -290,7 +290,7 @@
 	rng_ctx = kmalloc(sizeof(struct caam_rng_ctx), GFP_DMA);
 	if (!rng_ctx)
 		return -ENOMEM;
-	caam_init_rng(&rng_ctx, dev);
+	caam_init_rng(rng_ctx, dev);
 
 	dev_info(dev, "registering rng-caam\n");
 	return hwrng_register(&caam_rng);