Staging: rtl8192e: Rename variable NumRxUnicastOkInPeriod

Rename variable NumRxUnicastOkInPeriod to num_rx_unicast_ok_in_period
to fix checkpatch warning Avoid CamelCase.

Signed-off-by: Tree Davies <tdavies@darkphysics.net>
Link: https://lore.kernel.org/r/20240106055556.430948-13-tdavies@darkphysics.net


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