rockchip: board: lion-rk3368: update .its file

For the RK3368-uQ7, we can now update the .its file to mark the
Trusted Firmware as out 'firmware' bootable and annotate both ATF and
U-Boot with an OS-type.

Signed-off-by: Philipp Tomsich <philipp.tomsich@theobroma-systems.com>
Reviewed-by: Simon Glass <sjg@chromium.org>

board/theobroma-systems/lion_rk3368/fit_spl_atf.its

@@ -17,6 +17,7 @@
 			description = "U-Boot (64-bit)";
 			data = /incbin/("../../../u-boot-nodtb.bin");
 			type = "standalone";
+			os = "U-Boot";
 			arch = "arm64";
 			compression = "none";
 			load = <0x00200000>;
@@ -25,6 +26,7 @@
 			description = "ARM Trusted Firmware";
 			data = /incbin/("../../../bl31-rk3368.bin");
 			type = "firmware";
+			os = "arm-trusted-firmware";
 			arch = "arm64";
 			compression = "none";
 			load = <0x00100000>;
@@ -43,8 +45,8 @@
 		default = "conf";
 		conf {
 			description = "Theobroma Systems RK3368-uQ7 (Puma) SoM";
-			firmware = "uboot";
-			loadables = "atf";
+			firmware = "atf";
+			loadables = "uboot";
 			fdt = "fdt";
 		};
 	};