The TSC2046 is an updated version of the ADS7846 ... mention that in
the Kconfig helptext and driver source.
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Acked-by: NKevin Hilman <khilman@mvista.com>
Signed-off-by: NDmitry Torokhov <dtor@mail.ru>