staging: r8188eu: format comments in drivers/net style

staging: r8188eu: format comments in drivers/net style

Format comments according to the Linux kernerl coding style
for drivers/net so they do not need to be reformatted after
this driver is accepted into the drivers/net tree.

Suggested-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Rebecca Mckeever <remckee0@gmail.com>
Link: https://lore.kernel.org/r/bd7960acafb871c17ef733cd98b37294f38ad3fb.1649233201.git.remckee0@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>