ixgbe: cleanup some log messages

Some minor log messages cleanup, changing the level one message is logged,
adding a bit of detail to another and put all the text on one line.

Signed-off-by: Don Skidmore <donald.c.skidmore@intel.com>
Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>