IOVDD: tps65070's dcdc2
AVDD and DRVDD: fixed regulator derived from 5V via TPS73701DCQ
DVDD: fixed regulator derived from 5V via TPS73701DCQ

This patch needed to be able to probe the audio codec.
Signed-off-by: NPeter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: NSekhar Nori <nsekhar@ti.com>