scripts/spelling.txt: add "unneded" pattern and fix typo instances

Fix typos and add the following to the scripts/spelling.txt:

  unneded||unneeded

Link: http://lkml.kernel.org/r/1481573103-11329-15-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/sound/soc/codecs/wm_hubs.c b/sound/soc/codecs/wm_hubs.c
index 624b3b9cb079..63b2745f8169 100644
--- a/sound/soc/codecs/wm_hubs.c
+++ b/sound/soc/codecs/wm_hubs.c
@@ -1269,7 +1269,7 @@ void wm_hubs_set_bias_level(struct snd_soc_codec *codec,
                 break;
 
         case SND_SOC_BIAS_ON:
-                /* Turn off any unneded single ended outputs */
+                /* Turn off any unneeded single ended outputs */
                 val = 0;
                 mask = 0;