Cycles: Enable HIP-RT logging when debug log is on

These logs do not appear to be that noisy and do help nailing down
issues in HIP-RT.

Pull Request: https://projects.blender.org/blender/blender/pulls/135530

intern/cycles/device/hiprt/device_impl.cpp

@@ -100,7 +100,12 @@ HIPRTDevice::HIPRTDevice(const DeviceInfo &info,
     return;
   }
 
-  hiprtSetLogLevel(hiprtLogLevelNone);
+  if (VLOG_DEBUG_IS_ON) {
+    hiprtSetLogLevel(hiprtLogLevelInfo | hiprtLogLevelWarn | hiprtLogLevelError);
+  }
+  else {
+    hiprtSetLogLevel(hiprtLogLevelNone);
+  }
 }
 
 HIPRTDevice::~HIPRTDevice()