arm: mvebu: turris_omnia: prefer SCSI booting before USB

If SCSI and USB boot options are both available, try to boot from SCSI
first.
Signed-off-by: NMarek Behún <marek.behun@nic.cz>
Reviewed-by: NStefan Roese <sr@denx.de>
Signed-off-by: NStefan Roese <sr@denx.de>

include/configs/turris_omnia.h

@@ -92,8 +92,8 @@
 
 #define BOOT_TARGET_DEVICES(func) \
 	BOOT_TARGET_DEVICES_MMC(func) \
-	BOOT_TARGET_DEVICES_USB(func) \
 	BOOT_TARGET_DEVICES_SCSI(func) \
+	BOOT_TARGET_DEVICES_USB(func) \
 	func(PXE, pxe, na) \
 	func(DHCP, dhcp, na)