ARM: dts: porter: Add missing PMIC nodes

Add PMIC nodes to Porter and connect CPU DVFS supply. There is
one DA9063L and one DA9210 on Porter, the only difference from
the other boards is that DA9063L is at I2C address 0x5a rather
than 0x58 .

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>