ASoC: meson: axg-tdmout: remove useless assignment

cppcheck complains about potential null pointer dereference but it's
rather an unnecessary assignment to NULL before walking through a
list.

Signed-off-by: Pierre-Louis Bossart <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Mark Brown <[e-mail]>

sound/soc/meson/axg-tdmout.c

···
 static struct snd_soc_dai *
 axg_tdmout_get_be(struct snd_soc_dapm_widget *w)
 {
-	struct snd_soc_dapm_path *p = NULL;
+	struct snd_soc_dapm_path *p;
 	struct snd_soc_dai *be;
 
 	snd_soc_dapm_widget_for_each_sink_path(w, p) {