staging:rtl8192u: Rename List > list - Coding style

In struct TS_COMMON_INFO rename the member List to list. This clears the
checkpatch issue concerning CamelCase naming of variables.

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