hwc2: Modify the Config Count

CRs-Fixed: 2072496
Change-Id: Ia742b130ca30a32bdbf992d87dcf3bf137ca5f9c
diff --git a/libdisplayconfig/DisplayConfig.cpp b/libdisplayconfig/DisplayConfig.cpp
index c55715b..29fcc94 100644
--- a/libdisplayconfig/DisplayConfig.cpp
+++ b/libdisplayconfig/DisplayConfig.cpp
@@ -170,7 +170,7 @@
     }
 
     int count = 0;
-    intf->getActiveConfig(MapDisplayType(dpy),
+    intf->getConfigCount(MapDisplayType(dpy),
         [&](const auto &tmpError, const auto &tmpCount) {
             if (tmpError) {
                 return;