Update APNs for au, docomo, SoftBank and Y!mobile (Japan)

Change-Id: I9d9636cfb14526128f746d8c623c5714c1a1037c
Clean up apns-conf.xml

Change-Id: Ib7706a2cb690a4e3673b60067208daea6aee27c6
Add Japanese translation contributor

Change-Id: If343a20f5b3ce377084e607c853636329bae3a7e
common: build f2fs for all targets

Change-Id: I76ae7daefc64ba1b694495064b7f9d590d6867da
Free Mobile APNs updates

Change-Id: Ic62157df79d354577659bb6817148f7922427011
init.rc: Adding setprop entries for tcp delayed ack for Wifi & LTE

TCP delayed ack settings are expected to be modified when the
Wifi or LTE connection is established and the configurations
will be reverted back when the Wifi connection is terminated.
The change also modifies the /sys/kernel/ipv4/tcp_delack_seg
and /sys/kernel/ipv4/tcp_use_useconfig file owner to "system"

Requires: https://www.codeaurora.org/cgit/quic/la/kernel/msm/commit/?h=kk_2.7-stable&id=73989a4b345bba0efca96cc86b0258e83884ff63

Change-Id: I008e36931752d6db29454c5ce41e3cfe19b15ecb
Add APNs for docomo MVNOs (Japan)

@nifty: http://support.nifty.com/support/manual/internet/dolte/
BB.excite: http://support.excite.co.jp/app/answers/detail/a_id/3090
BIGLOBE: http://support.biglobe.ne.jp/settei/setuzoku/lte/index.html
DTI: http://dream.jp/mb/sim/support/manual/mnl_and_01.html
OCN: http://tech.support.ntt.com/ocn/mobile/one/
So-net: http://faq.so-net.ne.jp/app/answers/detail/a_id/2920/
U-mobile: http://umobile.jp/service/sim/setting/
WirelessGate: http://www.wirelessgate.co.jp/sim/service/yd/start_apn
hi-ho: http://home.hi-ho.ne.jp/hihomobile/lte/d/index.html?page=setting
楽天 エントリー/ライト/アクティブ: http://broadband.rakuten.co.jp/support/manual_internet/lte/android.html

Change-Id: I42d84cb7396029b974e63d8c39c94ade20247893
added Walmart APN

Change-Id: Ic9392cefde2cf6e6c3a00d77d3e4a91d2de7a7c1
add FreedomPop APN for 4G/LTE

Change-Id: I912969cfaf5f9787132d24848891da59642f854f
apns-conf: Fix Digi MMS port.

Change-Id: Id6c9c4916b0378f6f2c99d023f7dd8237d26b47a
added Sprint Test APNs

Change-Id: I0a276b5a4dd2a6fc071a4f9330bafd2cafb3405a