Move Gallery2 and its libs to /product

This app is frequently overriden by proprietary apps
on shipping devices, so move it to /product along with
its jni libs.

Bug: 122353713
Test: launch gallery on aosp_arm64 emulator
Change-Id: I5f7ae53ef41a26c1b89b93cdae24178c2a99e261
diff --git a/jni_jpegstream/Android.mk b/jni_jpegstream/Android.mk
index 76946f7..81ea288 100644
--- a/jni_jpegstream/Android.mk
+++ b/jni_jpegstream/Android.mk
@@ -16,6 +16,7 @@
 
 LOCAL_SDK_VERSION   := 17
 LOCAL_ARM_MODE := arm
+LOCAL_PRODUCT_MODULE := true
 
 LOCAL_CFLAGS    += -ffast-math -O3 -funroll-loops
 LOCAL_CFLAGS += -Wall -Wextra -Werror