net/i40e: workaround performance degradation

net/i40e: workaround performance degradation

The GL_SWR_PM_UP_THR value is not impacted from the link speed, its
value is set according to the total number of ports for a better
pipe-monitor configuration.

All bellowing relevant device IDs are considered (NICs, LOMs, Mezz
and Backplane):

Device-ID  Value        Comments
0x1572     0x03030303   10G SFI
0x1581     0x03030303   10G Backplane
0x1586     0x03030303   10G BaseT
0x1589     0x03030303   10G BaseT (FortPond)
0x1580     0x06060606   40G Backplane
0x1583     0x06060606   2x40G QSFP
0x1584     0x06060606   1x40G QSFP
0x1587     0x06060606   20G Backplane (HP)
0x1588     0x06060606   20G KR2 (HP)
0x158A     0x06060606   25G Backplane
0x158B     0x06060606   25G SFP28

Fixes: c9223a2bf53c ("i40e: workaround for XL710 performance")
Fixes: 75d133dd3296 ("net/i40e: enable 25G device")
Cc: stable@dpdk.org
Signed-off-by: Haiyue Wang <haiyue.wang@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>