MediaPlayer2: allow prepared->pause

Test: cts
Bug: 112549021
Change-Id: I3ead79f5c2441c01b80483e454d34e559129727e
diff --git a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
index b02e3f6..cb4b06d 100644
--- a/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
+++ b/media/libmediaplayer2/nuplayer2/NuPlayer2Driver.cpp
@@ -327,9 +327,9 @@
 
     switch (mState) {
         case STATE_PAUSED:
-        case STATE_PREPARED:
             return OK;
 
+        case STATE_PREPARED:
         case STATE_RUNNING:
             mState = STATE_PAUSED;
             mPlayer->pause();