dt-bindings: mfd: twl: Add charger node also for TWL603x

Also the TWL603X devices have a charger, so allow to specify it here.

Signed-off-by: Andreas Kemnade <andreas@kemnade.info>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20241007150120.1416698-3-andreas@kemnade.info


Signed-off-by: Lee Jones <lee@kernel.org>