Add clocks for MLP modules on Renesas R-Car E3 and D3 SoCs.
Similar to other R-Car Gen3 SoC, exact information on parent for MLP
clock on E3 and D3 is not available. However, since parent for this
clocl is not anyhow software-controllable, the only harm from this
is inexact information exported via debugfs. So just keep the parent[...]
set in the same way as with other Gen3 SoCs.
Signed-off-by: Nikita Yushchenko <nikita.yoush@xxxxxxxxxxxxxxxxxx>