reset: rockchip: convert to use live dt

Change-Id: I70b17b0d9c4ded215cb58f0b65303fc3dea64f7e
Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>

drivers/reset: support rockchip reset drivers

Create driver to support all Rockchip SoCs soft reset.
Example of usage:
i2c driver:
ret = reset_get_by_name(dev, "i2c", &reset_ctl);
if (ret) {
err

drivers/reset: support rockchip reset drivers

Create driver to support all Rockchip SoCs soft reset.
Example of usage:
i2c driver:
ret = reset_get_by_name(dev, "i2c", &reset_ctl);
if (ret) {
error("reset_get_by_name() failed: %d\n", ret);
}

reset_assert(&reset_ctl);
udelay(50);
reset_deassert(&reset_ctl);

i2c dts node:
resets = <&cru SRST_P_I2C1>, <&cru SRST_I2C1>;
reset-names = "p_i2c", "i2c";

Change-Id: I7db97619e33447d6130e349e90799cd398e29d72
Signed-off-by: Elaine Zhang <zhangqing@rock-chips.com>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>

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