fix logging problem

test/cpp/qps/usage_timer.cc

@@ -37,6 +37,7 @@
 #include <sstream>
 #include <string>
 
+#include <grpc/support/log.h>
 #include <grpc/support/time.h>
 #include <sys/resource.h>
 #include <sys/time.h>
@@ -68,7 +69,7 @@ static void get_cpu_usage(unsigned long long* total_cpu_time,
     }
   }
 #else
-  gpr_log(GRPC_INFO, "get_cpu_usage(): Non-linux platform is not supported.");
+  gpr_log(GPR_INFO, "get_cpu_usage(): Non-linux platform is not supported.");
 #endif
 }