ASoC: sti-uniperf: Fix implicit inclusion of pinctrl

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sti/sti_uniperif.c

@@ -6,6 +6,7 @@
  */
 
 #include <linux/module.h>
+#include <linux/pinctrl/consumer.h>
 
 #include "uniperif.h"