configs: Add devices with backend headset-mic.

AAudio fails due to missing device entries in audio_platform_info.
Add backend entries for devices in audio_platform_info file.

Change-Id: I759b719cb4231634bcf95a8070d4a6638c61457d
diff --git a/configs/msmnile/audio_platform_info.xml b/configs/msmnile/audio_platform_info.xml
index df2f46d..4e7c344 100644
--- a/configs/msmnile/audio_platform_info.xml
+++ b/configs/msmnile/audio_platform_info.xml
@@ -151,6 +151,9 @@
         <device name="SND_DEVICE_IN_VOICE_TTY_FULL_HEADSET_MIC" backend="headset-mic" interface="SLIMBUS_1_TX"/>
         <device name="SND_DEVICE_IN_VOICE_TTY_HCO_HEADSET_MIC" backend="headset-mic" interface="SLIMBUS_1_TX"/>
         <device name="SND_DEVICE_IN_UNPROCESSED_HEADSET_MIC" backend="headset-mic" interface="SLIMBUS_1_TX"/>
+        <device name="SND_DEVICE_IN_VOICE_REC_HEADSET_MIC" backend="headset-mic" interface="SLIMBUS_1_TX"/>
+        <device name="SND_DEVICE_IN_HEADSET_MIC_AEC" backend="headset-mic" interface="SLIMBUS_1_TX"/>
+        <device name="SND_DEVICE_IN_HEADSET_MIC_FLUENCE" backend="headset-mic" interface="SLIMBUS_1_TX"/>
     </backend_names>
     <!-- below values are for ref purpose to OEM, doesn't contain actual hardware info on MTP -->
     <microphone_characteristics>