[PATCH v3 2/3] MFD: twl6040: Convert to i2c driver, and separate it from twl core

* Peter Ujfalusi [off-list ref] [120210 01:29]:

Complete the separation of the twl6040 from the twl core since
it is a separate chip, not part of the twl6030 PMIC.

Signed-off-by: Peter Ujfalusi <redacted>
Reviewed-by: Mark Brown <redacted>

This should be OK to merge via the ASoC tree:

Acked-by: Tony Lindgren <tony@atomide.com>