x86: coral: Add a devicetree node for eMMC

Add a node for this so we can indicate that it is does not require any
ACPI code.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
diff --git a/arch/x86/dts/chromebook_coral.dts b/arch/x86/dts/chromebook_coral.dts
index 9319123..2ffe3b4 100644
--- a/arch/x86/dts/chromebook_coral.dts
+++ b/arch/x86/dts/chromebook_coral.dts
@@ -575,6 +575,12 @@
 			acpi,name = "SDCD";
 		};
 
+		emmc: emmc@1c,0 {
+			reg = <0x0000e000 0 0 0 0>;
+			compatible = "intel,apl-emmc";
+			non-removable;
+		};
+
 		pch: pch@1f,0 {
 			reg = <0x0000f800 0 0 0 0>;
 			compatible = "intel,apl-pch";