staging:rtl8192u: Rename union QOS_TSINFO - Style

The union QOS_TSINFO, as a type, should have a lowercase name. The
union has therefore been renamed to qos_tsinfo. Additionally the
'typedef' directive has been removed to clear the checkpatch issue
with defining new types.

These are coding style changes which should have no impact on runtime
code execution.

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>