Camera: Prevent crash when unable to find tag

* Some prebuilt camera apps try caching tag before setting value.
  When tag is not found, it crashes the app.

Log:

time: 1719773472448
msg: java.lang.IllegalArgumentException: Could not find tag for key 'org.codeaurora.qcamera3.saturation.use_saturation')
stacktrace: io.reactivex.exceptions.OnErrorNotImplementedException: java.lang.IllegalArgumentException: Could not find tag for key 'org.codeaurora.qcamera3.saturation.use_saturation')
	at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Unknown Source:2)
	at io.reactivex.internal.functions.Functions$OnErrorMissingConsumer.accept(Unknown Source:2)
	at io.reactivex.internal.observers.LambdaObserver.onError(Unknown Source:13)
	at io.reactivex.internal.observers.LambdaObserver.onNext(Unknown Source:25)
	at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.drainNormal(Unknown Source:47)
	at io.reactivex.internal.operators.observable.ObservableObserveOn$ObserveOnObserver.run(Unknown Source:8)
	at io.reactivex.internal.schedulers.ScheduledRunnable.run(Unknown Source:13)
	at io.reactivex.internal.schedulers.ScheduledRunnable.call(Unknown Source:0)
	at java.util.concurrent.FutureTask.run(FutureTask.java:264)
	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:307)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:644)
	at com.xiaomi.camera.rx.CameraSchedulers$2.run(Unknown Source:16)
	at java.lang.Thread.run(Thread.java:1012)
Caused by: java.lang.IllegalArgumentException: java.lang.IllegalArgumentException: Could not find tag for key 'org.codeaurora.qcamera3.saturation.use_saturation')
	at com.android.camera2.vendortag.VendorTagHelper.handleException(Unknown Source:35)
	at com.android.camera2.vendortag.VendorTagHelper.trySetValue(Unknown Source:11)
	at com.android.camera2.vendortag.VendorTagHelper.setValue(Unknown Source:2)
	at com.android.camera2.compat.MiCameraCompatQcomImpl.applySaturation(Unknown Source:23)
	at com.android.camera2.compat.MiCameraCompat.applySaturation(Unknown Source:2)
	at com.android.camera2.CaptureRequestBuilder.applySaturation(Unknown Source:10)
	at com.android.camera2.CameraConfigManager.lambda$setSaturation$25(Unknown Source:6)
	at com.android.camera2.CameraConfigManager.OooOo(Unknown Source:0)
	at OooO0OO.OooO0O0.OooO0O0.o0000.accept(Unknown Source:4)
	at java.util.Optional.ifPresent(Optional.java:178)
	at com.android.camera2.CameraConfigManager.setSaturation(Unknown Source:39)
	at com.android.camera.module.Camera2Module.updateSaturation(Unknown Source:49)
	at com.android.camera.module.Camera2Module.consumePreference(Unknown Source:175)
	at com.android.camera.features.mode.capture.CaptureModule.consumePreference(Unknown Source:0)
	at com.android.camera.module.BaseModule$ModuleConsumer.accept(Unknown Source:125)
	at com.android.camera.module.BaseModule$ModuleConsumer.accept(Unknown Source:2)
	at io.reactivex.internal.observers.LambdaObserver.onNext(Unknown Source:8)
	... 10 more
Caused by: java.lang.IllegalArgumentException: Could not find tag for key 'org.codeaurora.qcamera3.saturation.use_saturation')
	at android.hardware.camera2.impl.CameraMetadataNative.nativeGetTagFromKeyLocal(Native Method)
	at android.hardware.camera2.impl.CameraMetadataNative.setBase(CameraMetadataNative.java:1919)
	at android.hardware.camera2.impl.CameraMetadataNative.set(CameraMetadataNative.java:524)
	at android.hardware.camera2.impl.CameraMetadataNative.set(CameraMetadataNative.java:528)
	at android.hardware.camera2.CaptureRequest$Builder.set(CaptureRequest.java:882)
	at com.android.camera2.vendortag.VendorTagHelper.trySetValue(Unknown Source:6)
	... 25 more

Signed-off-by: Pranav Vashi <neobuddy89@gmail.com>