staging: rtl8192e: Rename variable SetWirelessMode

Rename variable SetWirelessMode to set_wireless_mode to avoid
CamelCase which is not accepted by checkpatch.

Signed-off-by: Yogesh Hegde <yogi.kernel@gmail.com>
Link: https://lore.kernel.org/r/c0a65d217d272bf457917c89462c49e67bbfedb2.1687183827.git.yogi.kernel@gmail.com


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