net/ixgbe/base: remove whitespace in function comments

net/ixgbe/base: remove whitespace in function comments

Remove unnecessary extra whitespace on all function comments, replacing
' *  ' with ' * '.

This was done automatically via sed using the following transformation:

  sed 's/^ \*  / * /'

Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Guinan Sun <guinanx.sun@intel.com>
Reviewed-by: Wei Zhao <wei.zhao1@intel.com>