rpmsg: remove unneeded conversions to bool

Found with scripts/coccinelle/misc/boolconv.cocci.

Signed-off-by: Andrew F. Davis <afd@ti.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

drivers/rpmsg/virtio_rpmsg_bus.c

@@ -528,7 +528,7 @@ static struct rpmsg_channel *rpmsg_create_channel(struct virtproc_info *vrp,
 	 * rpmsg server channels has predefined local address (for now),
 	 * and their existence needs to be announced remotely
 	 */
-	rpdev->announce = rpdev->src != RPMSG_ADDR_ANY ? true : false;
+	rpdev->announce = rpdev->src != RPMSG_ADDR_ANY;
 
 	strncpy(rpdev->id.name, chinfo->name, RPMSG_NAME_SIZE);