Fix the CDMA issue that incorrectly send the conference status in CLCC response

Multiparty flag should not be set when calls are not really in conference.
To use CdmaPhoneCallState.PhoneCallState.CONF_CALL instead of SINGLE_ACTIVE

Bug: 2238628
Dr No: Eastham
diff --git a/src/com/android/phone/BluetoothHandsfree.java b/src/com/android/phone/BluetoothHandsfree.java
index 078766d..6b98c80 100644
--- a/src/com/android/phone/BluetoothHandsfree.java
+++ b/src/com/android/phone/BluetoothHandsfree.java
@@ -1402,10 +1402,10 @@
         }
 
         int mpty = 0;
-        if (currCdmaCallState == CdmaPhoneCallState.PhoneCallState.SINGLE_ACTIVE) {
-            mpty = 0;
-        } else {
+        if (currCdmaCallState == CdmaPhoneCallState.PhoneCallState.CONF_CALL) {
             mpty = 1;
+        } else {
+            mpty = 0;
         }
 
         int direction = c.isIncoming() ? 1 : 0;