verdin-imx8mm: prepare for optional job ring driver model

Prepare for optional job ring driver model. Sec may be initialized based
on the job ring information processed from the device tree.

Signed-off-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
diff --git a/board/toradex/verdin-imx8mm/spl.c b/board/toradex/verdin-imx8mm/spl.c
index 243c97e..685ac94 100644
--- a/board/toradex/verdin-imx8mm/spl.c
+++ b/board/toradex/verdin-imx8mm/spl.c
@@ -56,6 +56,15 @@
 
 void spl_board_init(void)
 {
+	if (IS_ENABLED(CONFIG_FSL_CAAM)) {
+		struct udevice *dev;
+		int ret;
+
+		ret = uclass_get_device_by_driver(UCLASS_MISC, DM_DRIVER_GET(caam_jr), &dev);
+		if (ret)
+			printf("Failed to initialize %s: %d\n", dev->name, ret);
+	}
+
 	/* Serial download mode */
 	if (is_usb_boot()) {
 		puts("Back to ROM, SDP\n");