atheros: remove trailing whitespace

as suggested by checkpatch.

Signed-off-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@41085 3c298f89-4303-0410-b956-a3cf2f4a3e73

target/linux/atheros/patches-3.10/141-redboot_partition_scan.patch

@@ -7,7 +7,7 @@
 +	buf = vmalloc(master->erasesize);
 +	if (!buf)
 +		return -ENOMEM;
-+		
++
 + restart:
  	if ( directory < 0 ) {
  		offset = master->size + directory * master->erasesize;