Nuplayer2 metrics under 'nuplayer'

We should be logging the nuplayer2 metrics under 'nuplayer', not
'nuplayer2'.  I had made the poor suggestion that they be nuplayer2.

Bug: 72445608
Test: build
diff --git a/media/libmedia/nuplayer2/NuPlayer2Driver.cpp b/media/libmedia/nuplayer2/NuPlayer2Driver.cpp
index 629a7eb..ccfcc47 100644
--- a/media/libmedia/nuplayer2/NuPlayer2Driver.cpp
+++ b/media/libmedia/nuplayer2/NuPlayer2Driver.cpp
@@ -77,7 +77,7 @@
 };
 
 // key for media statistics
-static const char *kKeyPlayer = "nuplayer2";
+static const char *kKeyPlayer = "nuplayer";
 // attrs for media statistics
 static const char *kPlayerVMime = "android.media.mediaplayer.video.mime";
 static const char *kPlayerVCodec = "android.media.mediaplayer.video.codec";
@@ -666,7 +666,7 @@
 
         // re-init in case we prepare() and start() again.
         delete mAnalyticsItem ;
-        mAnalyticsItem = new MediaAnalyticsItem("nuplayer");
+        mAnalyticsItem = new MediaAnalyticsItem(kKeyPlayer);
         if (mAnalyticsItem) {
             mAnalyticsItem->generateSessionID();
             mAnalyticsItem->setUid(mClientUid);