vexpress: Fix typo in RTSM device-tree name

Change-Id: I1cb1216b5f0fe56aeeaac5a5e023d5fa3485c721
Signed-off-by: Jon Medhurst <tixy@linaro.org>
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 962821c..be3fcbc 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -19,7 +19,7 @@
 		rtsm_ve-cortex_a15x2:rtsm/rtsm_ve-ca15x2.dtb \
 		rtsm_ve-cortex_a15x4:rtsm/rtsm_ve-ca15x4.dtb \
 		rtsm_ve-v2p-ca15x1-ca7x1:rtsm/rtsm_ve-ca15x1-ca7x1.dtb \
-		rtsm_ve-v2p-ca15x4-ca7x4:rtsm/rtsm_ve-ca15x1-ca7x4.dtb
+		rtsm_ve-v2p-ca15x4-ca7x4:rtsm/rtsm_ve-ca15x4-ca7x4.dtb
 CUSTOM_BOOTLOADER_MAKEFILE := device/linaro/vexpress/bootloader.mk
 TARGET_USE_XLOADER := false
 TARGET_NO_RECOVERY := true