[E09] fix power domains and ethernet
- add missing power domain configuration
- fix rgmii delays using values computed with
echo 1000 > /sys/devices/platform/fe010000.ethernet/phy_lb_scan(explained in commit message) - configure LEDs for E09
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echo 1000 > /sys/devices/platform/fe010000.ethernet/phy_lb_scan (explained in commit message)