net/i40e/base: fix PHY identifiers for 2.5G and 5G adapters

net/i40e/base: fix PHY identifiers for 2.5G and 5G adapters

Unlike other supported adapters, 2.5G and 5G use different PHY type
identifiers for reading/writing PHY settings and for reading link status.
This commit introduces separate PHY identifiers for these two operation
types.

Fixes: 988ed63c7441 ("net/i40e/base: add support for Carlsville device")
Cc: stable@dpdk.org
Signed-off-by: Dawid Lukwinski <dawid.lukwinski@intel.com>
Signed-off-by: Robin Zhang <robinx.zhang@intel.com>
Acked-by: Beilei Xing <beilei.xing@intel.com>