Gradle cleanup #3

Tweak the way directories are passed

PiperOrigin-RevId: 374912886

core_settings.gradle

@@ -15,6 +15,7 @@ def rootDir = file(gradle.ext.exoplayerRoot)
 if (!gradle.ext.has('exoplayerSettingsDir')) {
     gradle.ext.exoplayerSettingsDir = rootDir.getCanonicalPath()
 }
+
 def modulePrefix = ':'
 if (gradle.ext.has('exoplayerModulePrefix')) {
     modulePrefix += gradle.ext.exoplayerModulePrefix

settings.gradle

@@ -11,7 +11,8 @@
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.
-gradle.ext.exoplayerRoot = settingsDir
+gradle.ext.exoplayerRoot = rootDir
+gradle.ext.exoplayerModulePrefix = ''
 
 def modulePrefix = ':'
 if (gradle.ext.has('exoplayerModulePrefix')) {