staging:rtl8192u: Rename TsCommonInfo - Style

Rename the member variable TsCommonInfo in two structures, both
tx_ts_record and RX_TS_RECORD. This member variable is used in both
structures and in both cases causes a checkpatch issue with CamelCase
naming.

The changes are purely coding style and should not impact runtime
code execution.

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