WS cleanup: remove trailing white space

Signed-off-by: Wolfgang Denk <wd@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
diff --git a/doc/imx/common/imx6.txt b/doc/imx/common/imx6.txt
index 0b50611..9007cfb 100644
--- a/doc/imx/common/imx6.txt
+++ b/doc/imx/common/imx6.txt
@@ -9,7 +9,7 @@
 1.1 MAC Address: It is stored in fuse bank 4, with the 32 lsbs in word 2 and the
     16 msbs in word 3[15:0].
     For i.MX6SX and i.MX6UL, they have two MAC addresses. The second MAC address
-    is stored in fuse bank 4, with the 16 lsb in word 3[31:16] and the 32 msbs in 
+    is stored in fuse bank 4, with the 16 lsb in word 3[31:16] and the 32 msbs in
     word 4.
 
 Example: