generic: 6.6: net: ethernet: mediatek: Allow gaps in MAC allocation

generic: 6.6: net: ethernet: mediatek: Allow gaps in MAC allocation

Some devices with MediaTek SoCs don't use the first but only the second
MAC in the chip. Especially with MT7981 which got a built-in 1GE PHY
connected to the second MAC this is quite common.
Make sure to reset and enable PSE also in those cases by skipping gaps
using 'continue' instead of aborting the loop using 'break'.

Fixes: 75081235b8 ("generic: 6.6: (re-)add support multiple PPE to mtk_eth_soc")
Reported-by: Daniel Suchy <danny@danysek.cz>
Signed-off-by: Daniel Golle <daniel@makrotopia.org>