Enable Ethernet tab in data usage

mStateSession is not initialized at the time hasEthernet is called to
set mShowEthernet, so Ethernet tab is not shown at the startup.
In this case, if the device doesn't support mobile network, user cannot
even select it from the context menu.

Bug: 8365419
Change-Id: I441971f18346c34a3adf3f18d9355075d9dce3f0
Signed-off-by: Jaewan Kim<jaewan@google.com>
Settings : Toggle expanded desktop for navbar

If entering the navbar screen with expanded desktop enabled, the navbar
is not shown hence hindering the ability to use the panel

This patchset addresses that by disabling expanded desktop upon entering,
and re-enabling upon exiting if it was previously enabled.

Patchset 2 : Fix state issues

Change-Id: I2776cf971f8899d30a25c0bf6b418793153555fc
Settings: Separate Expanded desktop from Power menu settings

This commit separates the ability to configure the Expanded desktop
mode from the ability to enable the switch in the Power menu.  This
will allow for the ED Tile to be hidden if the feature is disabled
and the power menu entry to be removed if the user chooses to use the
Tile instead.

Change-Id: I3d2eabde8087d25940cbb1e5262086b9c6e291f1

Conflicts:
	res/xml/power_menu_settings.xml
	res/xml/system_settings.xml
	src/com/android/settings/saber/PowerMenu.java
	src/com/android/settings/saber/SystemSettings.java

Signed-off-by: Paul Beeler <sparksco@gmail.com>