Recently link status change interrupt was enabled by default in testpmd,
it has opened the driver bug with not working LSC interrupt if either
igb_uio or uio_pci_generic kernel driver is used.
Fixes: 06bc197796e2 ("net/sfc: interrupts support sufficient for event queue init")
Cc: stable@dpdk.org
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>