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

webrtc/voice_engine/channel.cc

Index: webrtc/voice_engine/channel.cc
diff --git a/webrtc/voice_engine/channel.cc b/webrtc/voice_engine/channel.cc
index 9158d362c684104a913d2dde6e7c26877e98f926..5732e8e52349a8737be31983c12a7e69d33beec1 100644
--- a/webrtc/voice_engine/channel.cc
+++ b/webrtc/voice_engine/channel.cc
@@ -2502,7 +2502,8 @@ void Channel::RegisterSenderCongestionControlObjects(
 
   RTC_DCHECK(rtp_packet_sender);
   RTC_DCHECK(transport_feedback_observer);
-  RTC_DCHECK(packet_router && !packet_router_);
+  RTC_DCHECK(packet_router);
+  RTC_DCHECK(!packet_router_);
   rtcp_observer_->SetBandwidthObserver(bandwidth_observer);
   feedback_observer_proxy_->SetTransportFeedbackObserver(
       transport_feedback_observer);
@@ -2516,7 +2517,8 @@ void Channel::RegisterSenderCongestionControlObjects(
 
 void Channel::RegisterReceiverCongestionControlObjects(
     PacketRouter* packet_router) {
-  RTC_DCHECK(packet_router && !packet_router_);
+  RTC_DCHECK(packet_router);
+  RTC_DCHECK(!packet_router_);
   constexpr bool remb_candidate = false;
   packet_router->AddReceiveRtpModule(_rtpRtcpModule.get(), remb_candidate);
   packet_router_ = packet_router;