omni: change default wallpaper

Change-Id: I21e91aea3d26784135c6feb804b16ada898ed4af
diff --git a/overlay/common/frameworks/base/core/res/res/drawable-nodpi/default_wallpaper.png b/overlay/common/frameworks/base/core/res/res/drawable-nodpi/default_wallpaper.png
index ab07947..d7a2794 100644
--- a/overlay/common/frameworks/base/core/res/res/drawable-nodpi/default_wallpaper.png
+++ b/overlay/common/frameworks/base/core/res/res/drawable-nodpi/default_wallpaper.png
Binary files differ
diff --git a/overlay/common/frameworks/base/core/res/res/drawable-sw600dp-nodpi/default_wallpaper.png b/overlay/common/frameworks/base/core/res/res/drawable-sw600dp-nodpi/default_wallpaper.png
index ab07947..029d2c0 100644
--- a/overlay/common/frameworks/base/core/res/res/drawable-sw600dp-nodpi/default_wallpaper.png
+++ b/overlay/common/frameworks/base/core/res/res/drawable-sw600dp-nodpi/default_wallpaper.png
Binary files differ
diff --git a/overlay/common/frameworks/base/core/res/res/drawable-sw720dp-nodpi/default_wallpaper.png b/overlay/common/frameworks/base/core/res/res/drawable-sw720dp-nodpi/default_wallpaper.png
index ab07947..029d2c0 100644
--- a/overlay/common/frameworks/base/core/res/res/drawable-sw720dp-nodpi/default_wallpaper.png
+++ b/overlay/common/frameworks/base/core/res/res/drawable-sw720dp-nodpi/default_wallpaper.png
Binary files differ