rv1108: ddr: update ddr version to V1.12 20210818

build from:
0d1e779 Version: DDR Version V1.12 20210818
update feature:
92d6a34 ddr: set pmic default use I2C_0

Signed-off-by: Zhihuan He <huan.h

rv1108: ddr: update ddr version to V1.12 20210818

build from:
0d1e779 Version: DDR Version V1.12 20210818
update feature:
92d6a34 ddr: set pmic default use I2C_0

Signed-off-by: Zhihuan He <huan.he@rock-chips.com>
Change-Id: I7c1687d527941d79b1ea4190be0451abced7e349

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