Misc fix in gradle build file

Issue: androidx/media#209

#minor-release

PiperOrigin-RevId: 490492223
(cherry picked from commit 2424ee77)

libraries/test_session_current/build.gradle

@@ -41,7 +41,7 @@ dependencies {
     implementation project(modulePrefix + 'test-session-common')
     implementation 'androidx.media:media:' + androidxMediaVersion
     implementation 'androidx.test:core:' + androidxTestCoreVersion
-    implementation project(path: ':test-data')
+    implementation project(modulePrefix + 'test-data')
     androidTestImplementation project(modulePrefix + 'lib-exoplayer')
     androidTestImplementation 'androidx.test.ext:junit:' + androidxTestJUnitVersion
     androidTestImplementation 'androidx.test.ext:truth:' + androidxTestTruthVersion