rockchip: move usb0 after mmc1 in default boot order

now that we support booting from USB we should prefer USB boot over eMMC
boot. we still try to boot from SD cards first.

include/configs/rockchip-common.h

@@ -16,11 +16,10 @@
 
 /* First try to boot from SD (index 1), then eMMC (index 0) */
 #if CONFIG_IS_ENABLED(CMD_MMC)
-	#define BOOT_TARGET_MMC(func) \
-		func(MMC, mmc, 1) \
-		func(MMC, mmc, 0)
+	#define BOOT_TARGET_MMC(func, idx) \
+		func(MMC, mmc, idx)
 #else
-	#define BOOT_TARGET_MMC(func)
+	#define BOOT_TARGET_MMC(func, idx)
 #endif
 
 #if CONFIG_IS_ENABLED(CMD_NVME)
@@ -55,9 +54,10 @@
 
 #ifdef CONFIG_ROCKCHIP_RK3399
 #define BOOT_TARGET_DEVICES(func) \
-	BOOT_TARGET_MMC(func) \
-	BOOT_TARGET_NVME(func) \
 	BOOT_TARGET_USB(func) \
+	BOOT_TARGET_MMC(func, 1) \
+	BOOT_TARGET_NVME(func) \
+	BOOT_TARGET_MMC(func, 0) \
 	BOOT_TARGET_PXE(func) \
 	BOOT_TARGET_DHCP(func) \
 	BOOT_TARGET_SF(func)