Fix ClearKey prior to API 27

There are C.CLEARKEY_UUID.equals(uuid) checks in FrameworkMediaDrm,
so uuid needs to be CLEARKEY_UUID, not COMMON_PSSH_UUID

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Created by MOE: https://github.com/google/moe
MOE_MIGRATED_REVID=210094372

library/core/src/main/java/com/google/android/exoplayer2/drm/FrameworkMediaDrm.java

@@ -66,10 +66,10 @@ public final class FrameworkMediaDrm implements ExoMediaDrm<FrameworkMediaCrypto
   private FrameworkMediaDrm(UUID uuid) throws UnsupportedSchemeException {
     Assertions.checkNotNull(uuid);
     Assertions.checkArgument(!C.COMMON_PSSH_UUID.equals(uuid), "Use C.CLEARKEY_UUID instead");
-    // ClearKey had to be accessed using the Common PSSH UUID prior to API level 27.
-    uuid = Util.SDK_INT < 27 && C.CLEARKEY_UUID.equals(uuid) ? C.COMMON_PSSH_UUID : uuid;
     this.uuid = uuid;
-    this.mediaDrm = new MediaDrm(uuid);
+    // ClearKey had to be accessed using the Common PSSH UUID prior to API level 27.
+    this.mediaDrm =
+        new MediaDrm(Util.SDK_INT < 27 && C.CLEARKEY_UUID.equals(uuid) ? C.COMMON_PSSH_UUID : uuid);
     if (C.WIDEVINE_UUID.equals(uuid) && needsForceWidevineL3Workaround()) {
       forceWidevineL3(mediaDrm);
     }