power: rk8xx: fix swapped mask and value in init registers for RK806

power: rk8xx: fix swapped mask and value in init registers for RK806

The val (the bits to set) is the second member of the reg_data structure
and mask the third one. We obviously want to clear bits 6 and 7 in order
to only set bit 7 in there instead of only clearing bit 7 in order to
write bits 6 and 7 (which makes no sense).

Fortunately, according to the datasheet, bit 6 value doesn't matter when
bit 7 is set so this is essentially just a cosmetic change, no intended
change in behavior.

Fixes: f172575d92cd ("power: rk8xx: add support for RK806")
Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Kever Yang <kever.yang@rock-chips.com>