Staging: rtl8192e: add curly braces to if statement

In the original code there was some extra semicolons after the if
statement:
	if (!channel_map[ieee->current_network.channel]);
						       ^^^
>From the indenting it looked like that should be curly braces instead.

Also I made some white space changes to stop checkpatch.pl from
complaining.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>