ASoC: img: Add driver for Pistachio internal DAC

Add driver for Pistachio Internal DAC

Signed-off-by: Damien.Horsley <Damien.Horsley@imgtec.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/sound/soc/img/Makefile b/sound/soc/img/Makefile
index 1a44fb4..0508c1c 100644
--- a/sound/soc/img/Makefile
+++ b/sound/soc/img/Makefile
@@ -3,3 +3,5 @@
 obj-$(CONFIG_SND_SOC_IMG_PARALLEL_OUT) += img-parallel-out.o
 obj-$(CONFIG_SND_SOC_IMG_SPDIF_IN) += img-spdif-in.o
 obj-$(CONFIG_SND_SOC_IMG_SPDIF_OUT) += img-spdif-out.o
+
+obj-$(CONFIG_SND_SOC_IMG_PISTACHIO_INTERNAL_DAC) += pistachio-internal-dac.o