igb: force phy power up/down
igb: force phy power up/down

Signed-off-by: Intel

mixja/dpdk,tsphillips/dpdk-fork,mixja/dpdk,venkynv/dpdk-mirror,venkynv/dpdk-mirror,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,mixja/dpdk,msune/dpdk,tsphillips/dpdk-fork,john-mcnamara-intel/dpdk,msune/dpdk,john-mcnamara-intel/dpdk,venkynv/dpdk-mirror,mixja/dpdk,msune/dpdk,msune/dpdk,venkynv/dpdk-mirror,tsphillips/dpdk-fork,tsphillips/dpdk-fork