hal: add support for compress passthrough

- Add support for compress passthrough.

Change-Id: I4934470ac8b23cb8de9b2d7d1b0014afe74b5a27
diff --git a/hal/msm8960/platform.c b/hal/msm8960/platform.c
index 9bcd388..a761209 100644
--- a/hal/msm8960/platform.c
+++ b/hal/msm8960/platform.c
@@ -1168,7 +1168,10 @@
 
 }
 
-int platform_set_hdmi_config(struct stream_out *out __unused)
+int platform_set_hdmi_config(void *platform __unused,
+                                    uint32_t channel_count __unused,
+                                    uint32_t sample_rate __unused,
+                                    bool enable_passthrough __unused)
 {
     return 0;
 }