rx51_battery: Replace hardcoded channels values.
rx51_battery: Replace hardcoded channels values.

In twl4030_madc header exist defines for fixed channels + add rx51
specific channels and replace all hardcoded channels values.

Signed-off-by: Marek Belisko <2e0084147176644ce91c5df4ae01a4a541d3616d@open-nandra.com>
Signed-off-by: Anton Vorontsov <14deb5e5e417133e888bf47bb6a3555c9bb7d81c@enomsg.org>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs