Staging: et131x: Small format/style tidyups

I fixed indentation in one place and two long lines, a space and a brace
found by checkpatch.pl and fixed some long lines and whitespace around an =.

Signed-off-by: Lars Lindley <lindley@coyote.org>
Signed-off-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>