Nex4 Default wallpapers

Change-Id: I69f6008ccb57c4639e4c6ecbc63a26699e860faf
Initial Wallpaper

Change-Id: I37a7a657473153f51669a0939fb35a1f95cff96e
Wallpaper derp

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4.2 wallpapers & clean-up

Change-Id: I07821fd64e8d998c5fabe9383d7bb68cd5a0b5f5