ixgbe: reset hardware stats on initialization
ixgbe: reset hardware stats on initialization

When initialize the hardware, the stat should be reset.
Otherwise when detach then attach port, the stat will not
be re-init to zero.

Signed-off-by: Michael Qiu <f0309ca2255ec42822adda7c4b8f366ca4bb5572@intel.com>
Acked-by: Bernard Iremonger <233eeff376ad0c06f66f06c5522ea3c4feb30d3b@intel.com>

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