mfd: da9063: Upgrade of register definitions to support production silicon

This patch updates the register definitions for DA9063 to support the
production silicon variant code ID (0x5). These changes are not backwards
compatible with the previous register definitions and can only be used
with the production variant of DA9063.

Signed-off-by: Opensource [Steve Twiss] <stwiss.opensource@diasemi.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>