staging: rtl8188eu: rename parameter of hal_com_get_channel_plan() - style

Rename parameter of hal_com_get_channel_plan() in header to avoid
CamelCase and match the name used in the function definition in
hal_com.c. AutoLoadFail -> load_fail

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>