From: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>
All SFP power supplies are connected to the system VDD33 which is 3v3/8A.
Set 3A per SFP slot to allow SFPs work which need more power than the
default 1W.
Fixes: 8e01fb15b815 ("arm64: dts: mt7986: add Bananapi R3")
Signed-off-by: Frank Wunderlich <frank-w@xxxxxxxxxxxxxxx>