Fix cut/paste typo confusing double/string

Bug: 119623662
Test: logcat
diff --git a/media/libmediametrics/MediaAnalyticsItem.cpp b/media/libmediametrics/MediaAnalyticsItem.cpp
index 135c9b6..d3de01e 100644
--- a/media/libmediametrics/MediaAnalyticsItem.cpp
+++ b/media/libmediametrics/MediaAnalyticsItem.cpp
@@ -478,7 +478,7 @@
 // caller responsible for the returned string
 bool MediaAnalyticsItem::getCString(MediaAnalyticsItem::Attr name, char **value) {
     Prop *prop = findProp(name);
-    if (prop == NULL || prop->mType != kTypeDouble) {
+    if (prop == NULL || prop->mType != kTypeCString) {
         return false;
     }
     if (value != NULL) {