Refactor baudrate to bitrate

Refactoring baudrate to bitrate to be consistent with terminology in
the broader literature.

Bug: 147448388
Test: Manual + VTS
Change-Id: I161b39727a3fd50ea5eddafed6fbd4924ccd149f
diff --git a/automotive/can/1.0/default/CanBusNative.h b/automotive/can/1.0/default/CanBusNative.h
index 7eda683..04d7194 100644
--- a/automotive/can/1.0/default/CanBusNative.h
+++ b/automotive/can/1.0/default/CanBusNative.h
@@ -21,13 +21,13 @@
 namespace android::hardware::automotive::can::V1_0::implementation {
 
 struct CanBusNative : public CanBus {
-    CanBusNative(const std::string& ifname, uint32_t baudrate);
+    CanBusNative(const std::string& ifname, uint32_t bitrate);
 
   protected:
     virtual ICanController::Result preUp() override;
 
   private:
-    const uint32_t mBaudrate;
+    const uint32_t mBitrate;
 };
 
 }  // namespace android::hardware::automotive::can::V1_0::implementation