staging: r8188eu: correct misspelling in comment 'tppe' -> 'type'

Correct spelling typo.

Suggested-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rebecca Mckeever <remckee0@gmail.com>
Link: https://lore.kernel.org/r/edaab7d38893e4f1cbb3c281b617c74fa91f0fe7.1649233201.git.remckee0@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>