crypto: omap-sham - Fix compile errors when CONFIG_OF not defined

Fix the compile errors created by commit 2545e8d
(crypto: omap-sham - Add Device Tree Support)
when CONFIG_OF is not defined.  This includes
changing omap_sham_get_res_dev() to omap_sham_get_res_of()
and creating an empty version of omap_sham_of_match[].

Signed-off-by: Mark A. Greer <mgreer@animalcreek.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

drivers/crypto/omap-sham.c

@@ -1607,7 +1607,11 @@ err:
 	return err;
 }
 #else
-static int omap_sham_get_res_dev(struct omap_sham_dev *dd,
+static const struct of_device_id omap_sham_of_match[] = {
+	{},
+};
+
+static int omap_sham_get_res_of(struct omap_sham_dev *dd,
 		struct device *dev, struct resource *res)
 {
 	return -EINVAL;