audiopolicy : Fix for incorrect input device selection

Some VoIP applications do not use source as VOICE_COMM
but MIC and policy manager ignores the force usage in that
case and selects handset-mic as input device even when
BT-SCO headset is connected.
Check the force usage for the AUDIO_SOURCE_MIC as well.

Bug: 18606571

Change-Id: I5d5010ab396f85bf58573943c91fd815f39f57c1
diff --git a/services/audiopolicy/AudioPolicyManager.cpp b/services/audiopolicy/AudioPolicyManager.cpp
index 744556d..79d4ae6 100644
--- a/services/audiopolicy/AudioPolicyManager.cpp
+++ b/services/audiopolicy/AudioPolicyManager.cpp
@@ -5127,6 +5127,9 @@
     case AUDIO_SOURCE_MIC:
     if (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_A2DP) {
         device = AUDIO_DEVICE_IN_BLUETOOTH_A2DP;
+    } else if ((mForceUse[AUDIO_POLICY_FORCE_FOR_RECORD] == AUDIO_POLICY_FORCE_BT_SCO) &&
+        (availableDeviceTypes & AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET)) {
+        device = AUDIO_DEVICE_IN_BLUETOOTH_SCO_HEADSET;
     } else if (availableDeviceTypes & AUDIO_DEVICE_IN_WIRED_HEADSET) {
         device = AUDIO_DEVICE_IN_WIRED_HEADSET;
     } else if (availableDeviceTypes & AUDIO_DEVICE_IN_USB_DEVICE) {