Since current tree support AXP803 regulators,
replace fixed regulator vcc3v3 with AXP803 dcdc1 regulator where ever
it need to replace.

Tested mmc0 on sopine baseboard.
Signed-off-by: NJagan Teki <jagan@amarulasolutions.com>
Signed-off-by: NMaxime Ripard <maxime.ripard@free-electrons.com>