regulator: rk808: add the description about dvs gpio for rk808

add the description about dvs1, dvs2, and add the example.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Chris Zhong 2015-07-20 17:23:52 +08:00 • committed by Mark Brown
commit 0ec5f8bd99