net: mvpp2x: Remove IRQ configuration from U-Boot

net: mvpp2x: Remove IRQ configuration from U-Boot

Remove IRQ configuration from U-Boot PP driver.
U-Boot don't use interrupts and configuration of IRQ in U-Boot
caused crashes in Linux shared interrupt mode.
Also interrupt use is redundant in RX routine since a single RX
queue is used.

Signed-off-by: Stefan Chulski <[email protected]>
Tested-by: iSoC Platform CI <[email protected]>
Reviewed-by: Nadav Haklai <[email protected]>
Reviewed-by: Igal Liberman <[email protected]>
Acked-by: Joe Hershberger <[email protected]>
Signed-off-by: Stefan Roese <[email protected]>