ixgbe: add FW recovery mode check

Add FM NVM recovery mode check. Allow the software to detect this.

Signed-off-by: Xiaoyun Li <xiaoyun.li@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>

Approved by: imp
Obtained from: DPDK (5fb0a9acbb844b21691568c0014866e0e887bd19)
MFC after: 1 week
Differential Revision: https://reviews.freebsd.org/D31621

(cherry picked from commit b622bdb4ebdfc6dfe1a332fcc912426559c829f3)