remoteproc: make device_type const

Make this const as it is only stored in the type field of a device
structure, which is const.
Done using Coccinelle.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

drivers/remoteproc/remoteproc_core.c

@@ -1360,7 +1360,7 @@ static void rproc_type_release(struct device *dev)
 	kfree(rproc);
 }
 
-static struct device_type rproc_type = {
+static const struct device_type rproc_type = {
 	.name		= "remoteproc",
 	.release	= rproc_type_release,
 };