Documentation: networking: device drivers: Remove stray asterisks
    
    These asterisks were once references to a line that said:
      "* Other names and brands may be claimed as the property of others."
    But now, they serve no purpose; they can only irritate the reader.
    
    Fixes: de3edab4276c ("e1000: update README for e1000")
    Fixes: a3fb65680f65 ("e100.txt: Cleanup license info in kernel doc")
    Fixes: da8c01c4502a ("e1000e.txt: Add e1000e documentation")
    Fixes: f12a84a9f650 ("Documentation: fm10k: Add kernel documentation")
    Fixes: b55c52b1938c ("igb.txt: Add igb documentation")
    Fixes: c4e9b56e2442 ("igbvf.txt: Add igbvf Documentation")
    Fixes: d7064f4c192c ("Documentation/networking/: Update Intel wired LAN driver documentation")
    Fixes: c4b8c01112a1 ("ixgbevf.txt: Update ixgbevf documentation")
    Fixes: 1e06edcc2f22 ("Documentation: i40e: Prepare documentation for RST conversion")
    Fixes: 105bf2fe6b32 ("i40evf: add driver to kernel build system")
    Fixes: 1fae869bcf3d ("Documentation: ice: Prepare documentation for RST conversion")
    Fixes: df69ba43217d ("ionic: Add basic framework for IONIC Network device driver")
    Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
    Tested-by: Aaron Brown <aaron.f.brown@intel.com>
    Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>