The VAUX4 voltage table scrolls onto a second page in many versions
of the TWL4030 family manuals.  This doesn't mean we should ignore
those values!  Some boards use the (fully supported) 2.8V setting.
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Tony Lindgren <tony@atomide.com>