igbvf: Fix code comments and whitespace

Fix the code comments to align with the drivers/net/ commenting style.
Also fix other checkpatch errors such as using tabs where possible and
properly wrap lines to conform to the 80 char limit (unless it is
a string).

Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Tested-by: Aaron Brown <aaron.f.brown@intel.com>

diff --cc drivers/net/ethernet/intel/igbvf/defines.h
Simple merge

diff --cc drivers/net/ethernet/intel/igbvf/ethtool.c
Simple merge

diff --cc drivers/net/ethernet/intel/igbvf/igbvf.h
Simple merge

diff --cc drivers/net/ethernet/intel/igbvf/mbx.c
Simple merge

diff --cc drivers/net/ethernet/intel/igbvf/mbx.h
Simple merge

diff --cc drivers/net/ethernet/intel/igbvf/netdev.c
Simple merge

diff --cc drivers/net/ethernet/intel/igbvf/regs.h
Simple merge

diff --cc drivers/net/ethernet/intel/igbvf/vf.c
Simple merge

diff --cc drivers/net/ethernet/intel/igbvf/vf.h
Simple merge