Add camera feature files to the SDK system image.

Without this the system refuses to install applications that
requires the camera (like ApiDemos)

Change-Id: Ia13b6a10f4731bf23eea04e3210ad0b3ed557aa6
diff --git a/target/product/sdk.mk b/target/product/sdk.mk
index d847377..73302aa 100644
--- a/target/product/sdk.mk
+++ b/target/product/sdk.mk
@@ -28,7 +28,8 @@
 	SoftKeyboard
 
 PRODUCT_COPY_FILES := \
-	development/data/etc/vold.conf:system/etc/vold.conf
+	development/data/etc/vold.conf:system/etc/vold.conf \
+	frameworks/base/data/etc/android.hardware.camera.autofocus.xml:system/etc/permissions/android.hardware.camera.autofocus.xml
 
 $(call inherit-product, $(SRC_TARGET_DIR)/product/core.mk)