regulator: anatop: Set default voltage selector for vddpu

regulator: anatop: Set default voltage selector for vddpu

commit fe08be3ec8672ed92b3ed1b85810df9fa0f98931 upstream.

The code reads the default voltage selector from its register. If the
bootloader disables the regulator, the default voltage selector will be
0 which results in faulty behaviour of this regulator driver.

This patch sets a default voltage selector for vddpu if it is not set in
the register.

Signed-off-by: Markus Pargmann <mpa@pengutronix.de>
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>