dm: memory: Introduce new uclass

Introduce UCLASS_MEMORY for future Memory Controller
device drivers.

Signed-off-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/drivers/memory/memory-uclass.c b/drivers/memory/memory-uclass.c
new file mode 100644
index 0000000..d6d37fe
--- /dev/null
+++ b/drivers/memory/memory-uclass.c
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2022
+ *     Texas Instruments Incorporated, <www.ti.com>
+ */
+
+#include <dm.h>
+
+UCLASS_DRIVER(memory) = {
+	.name = "memory",
+	.id = UCLASS_MEMORY,
+	.post_bind = dm_scan_fdt_dev,
+};