Config change to not show swap button after merging calls into Cdma conference.

Swapping is not supported for Cdma conferences.  Clicking the swap button would
cause the last call to be disconnected.

Bug: 19414838
Change-Id: Id572868730fde484e9572cd063b0276d7d8b5c1b
diff --git a/overlay/packages/services/Telephony/res/values-mcc310-mnc120/config.xml b/overlay/packages/services/Telephony/res/values-mcc310-mnc120/config.xml
index 06c9ae5..d29eb83 100644
--- a/overlay/packages/services/Telephony/res/values-mcc310-mnc120/config.xml
+++ b/overlay/packages/services/Telephony/res/values-mcc310-mnc120/config.xml
@@ -33,6 +33,8 @@
     <bool name="config_use_hfa_for_provisioning" translatable="false">true</bool>
     <!-- Display carrier settings -->
     <bool name="config_carrier_settings_enable">true</bool>
+    <!-- Don't display swap button after merging calls into Cdma conference. -->
+    <bool name="support_swap_after_merge">false</bool>
     <!-- carrier settings menu -->
     <string name="carrier_settings" translatable="false">com.android.sdm.plugins.sprintdm</string>
     <string name="carrier_settings_menu" translatable="false">com.android.sdm.plugins.sprintdm.SprintCarrierSettingsActivity</string>