android: fail InitRecording when OpenSLES recorder creation fails

CreateAudioRecorder() could fail but InitRecording() still returned
success and set initialized_, leading to null derefs when starting
recording and skipping cleanup; this propagates the failure so recording
only proceeds when the recorder is actually created.

Bug: webrtc:42223229
Change-Id: I0c272c2b86a22e48bb8bf4f4364d06ba9946cb59
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/431280
Reviewed-by: Harald Alvestrand <hta@webrtc.org>
Commit-Queue: Danil Chapovalov <danilchap@webrtc.org>
Reviewed-by: Danil Chapovalov <danilchap@webrtc.org>
Cr-Commit-Position: refs/heads/main@{#46706}