hal: fix compilation issues with audio FM extention

- Update FM device references to match latest
  definitions to fix compilation of FM extention.
- Update FM feature flag for power optimization.

Change-Id: I17a9e240e552c4089d3e9c7a25e437fb5b5433f9
diff --git a/hal/msm8974/platform.c b/hal/msm8974/platform.c
index cc48b9e..0af5a08 100644
--- a/hal/msm8974/platform.c
+++ b/hal/msm8974/platform.c
@@ -2657,9 +2657,7 @@
                 }
             }
         }
-    } else if (source == AUDIO_SOURCE_FM_RX ||
-               source == AUDIO_SOURCE_FM_RX_A2DP||
-               source == AUDIO_SOURCE_FM_TUNER) {
+    } else if (source == AUDIO_SOURCE_FM_TUNER) {
         snd_device = SND_DEVICE_IN_CAPTURE_FM;
     } else if (source == AUDIO_SOURCE_DEFAULT) {
         goto exit;
@@ -2702,8 +2700,7 @@
         } else if (in_device & AUDIO_DEVICE_IN_ANLG_DOCK_HEADSET ||
                    in_device & AUDIO_DEVICE_IN_DGTL_DOCK_HEADSET) {
             snd_device = SND_DEVICE_IN_USB_HEADSET_MIC;
-        } else if (in_device & AUDIO_DEVICE_IN_FM_RX ||
-                   in_device & AUDIO_DEVICE_IN_FM_TUNER) {
+        } else if (in_device & AUDIO_DEVICE_IN_FM_TUNER) {
             snd_device = SND_DEVICE_IN_CAPTURE_FM;
         } else {
             ALOGE("%s: Unknown input device(s) %#x", __func__, in_device);
@@ -3452,8 +3449,7 @@
 int platform_update_usecase_from_source(int source, int usecase)
 {
     ALOGV("%s: input source :%d", __func__, source);
-    if (source == AUDIO_SOURCE_FM_RX_A2DP ||
-        source == AUDIO_SOURCE_FM_TUNER)
+    if (source == AUDIO_SOURCE_FM_TUNER)
         usecase = USECASE_AUDIO_RECORD_FM_VIRTUAL;
     return usecase;
 }