Fix build - Add TARGET_ARCH := arm

Change-Id: I060f57e76e0fe7c048b7968e43525b510bb4e13d
diff --git a/BoardConfig.mk b/BoardConfig.mk
index 3216009..4d1f6ab 100644
--- a/BoardConfig.mk
+++ b/BoardConfig.mk
@@ -7,6 +7,7 @@
 TARGET_NO_BOOTLOADER := true
 TARGET_NO_KERNEL := true
 
+TARGET_ARCH := arm
 TARGET_ARCH_VARIANT := armv7-a-neon
 TARGET_CPU_ABI := armeabi-v7a
 TARGET_CPU_ABI2 := armeabi