Staging: rtl8192e: Rename variable NumRxOkInPeriod

Rename variable NumRxOkInPeriod to num_rx_ok_in_period to fix checkpatch
warning Avoid CamelCase.

Signed-off-by: Tree Davies <tdavies@darkphysics.net>
Link: https://lore.kernel.org/r/20231225202314.31869-4-tdavies@darkphysics.net


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