Install a unified fstab for the sdk image

Change-Id: I95ed5ee83783dfce110c1f07b187d4624be9a735
diff --git a/target/product/sdk.mk b/target/product/sdk.mk
index f7a65db..3226423 100644
--- a/target/product/sdk.mk
+++ b/target/product/sdk.mk
@@ -83,6 +83,7 @@
 PRODUCT_PACKAGE_OVERLAYS := development/sdk_overlay
 
 PRODUCT_COPY_FILES := \
+	device/generic/goldfish/fstab.goldfish:root/fstab.goldfish \
 	device/generic/goldfish/data/etc/apns-conf.xml:system/etc/apns-conf.xml \
 	system/core/rootdir/etc/vold.fstab:system/etc/vold.fstab \
 	frameworks/base/data/sounds/effects/camera_click.ogg:system/media/audio/ui/camera_click.ogg \