remoteproc: k3_arm64: Enable DM_FLAG_DEFAULT_PD_CTRL_OFF

Enable DM_FLAG_DEFAULT_PD_CTRL_OFF for arm64 remote core so that
pd can be enabled after loading the image.

Signed-off-by: Lokesh Vutla <lokeshvutla@ti.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

drivers/remoteproc/ti_k3_arm64_rproc.c

@@ -225,4 +225,5 @@ U_BOOT_DRIVER(k3_arm64) = {
 	.ops = &k3_arm64_ops,
 	.probe = k3_arm64_probe,
 	.priv_auto_alloc_size = sizeof(struct k3_arm64_privdata),
+	.flags = DM_FLAG_DEFAULT_PD_CTRL_OFF,
 };