Replace CHECK(x && y) with two separate CHECK() calls

webrtc/modules/audio_coding/codecs/opus/audio_encoder_opus.cc

Index: webrtc/modules/audio_coding/codecs/opus/audio_encoder_opus.cc
diff --git a/webrtc/modules/audio_coding/codecs/opus/audio_encoder_opus.cc b/webrtc/modules/audio_coding/codecs/opus/audio_encoder_opus.cc
index 5b9a8953325a2f140a8f3501a52e5ae3c486c3c4..e94ea6572e12b82d77f25b6569b63e0437652108 100644
--- a/webrtc/modules/audio_coding/codecs/opus/audio_encoder_opus.cc
+++ b/webrtc/modules/audio_coding/codecs/opus/audio_encoder_opus.cc
@@ -391,7 +391,8 @@ AudioEncoderOpus::AudioEncoderOpus(
           ? std::move(bitrate_smoother) : std::unique_ptr<SmoothingFilter>(
               // We choose 5sec as initial time constant due to empirical data.
               new SmoothingFilterImpl(5000))) {
-  RTC_DCHECK(0 <= payload_type && payload_type <= 127);
+  RTC_DCHECK_GE(payload_type, 0);
+  RTC_DCHECK_LE(payload_type, 127);
 
   // Sanity check of the redundant payload type field that we want to get rid
   // of. See https://bugs.chromium.org/p/webrtc/issues/detail?id=7847