staging: rtl8192e: Rename CurSTAConnectState and PreSTAConnectState

Rename variable CurSTAConnectState to cur_sta_connect_state,
PreSTAConnectState to pre_sta_connect_state to avoid CamelCase
which is not accepted by checkpatch.

Signed-off-by: Dragan Cvetic <dragan.m.cvetic@gmail.com>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/20221010190457.13199-2-dragan.m.cvetic@gmail.com


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