sdk:enable emulator to launch in build environment

Recent changes in emulator requires advancedFeatures.ini,
encryptionkey.img and new kernels (such as 3.18) at OUT directory
so emulator can find them.

This CL set those up as part of the build process.

Change-Id: Iccaea540b2a27f45fd487dd25408b5d5c047171c
Merged-In: Ib3b7c4c48a22cecb44255e643402fd1c37797522
diff --git a/target/product/sdk_phone_arm64.mk b/target/product/sdk_phone_arm64.mk
index a689475..3bab84d 100644
--- a/target/product/sdk_phone_arm64.mk
+++ b/target/product/sdk_phone_arm64.mk
@@ -19,6 +19,15 @@
 # build quite specifically for the emulator, and might not be
 # entirely appropriate to inherit from for on-device configurations.
 
+# Note: the following lines need to stay at the beginning so that it can
+# take priority  and override the rules it inherit from other mk files
+# see copy file rules in core/Makefile
+PRODUCT_COPY_FILES += \
+    development/sys-img/advancedFeatures.ini.arm:advancedFeatures.ini \
+    prebuilts/qemu-kernel/arm64/3.18/kernel-qemu2:kernel-ranchu \
+    device/generic/goldfish/fstab.ranchu.arm:root/fstab.ranchu \
+    device/generic/goldfish/fstab.ranchu.early.arm:root/fstab.ranchu.early
+
 $(call inherit-product, $(SRC_TARGET_DIR)/product/core_64_bit.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/product/sdk_base.mk)
 $(call inherit-product, $(SRC_TARGET_DIR)/board/generic_arm64/device.mk)