arm64: Fix the sdk_arm64 build products

This patch fixes the sdk_arm64 system images to boot properly when run
under emulation with the new qemu-android binaries.

BUG=17154406

Change-Id: I152eb09086ce4abc4b623e54de78cdaaac6b90a1
diff --git a/target/product/sdk_arm64.mk b/target/product/sdk_arm64.mk
index 9aa58b3..d724207 100644
--- a/target/product/sdk_arm64.mk
+++ b/target/product/sdk_arm64.mk
@@ -21,6 +21,7 @@
 
 $(call inherit-product, $(SRC_TARGET_DIR)/product/core_64_bit.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk.mk)
+$(call inherit-product, $(SRC_TARGET_DIR)/board/generic_arm64/device.mk)
 
 # Overrides
 PRODUCT_BRAND := generic_arm64