sm8150-common: udfps: Update handler methods

Change-Id: I7778ba69dcdf2843d3c11f5bd0ec92f1887f7395

udfps/UdfpsHandler.cpp

@@ -104,6 +104,14 @@ class XiaomiMsmnileUdfpsHandler : public UdfpsHandler {
     void onFingerUp() {
         // nothing
     }
+
+    void onAcquired(int32_t /*result*/, int32_t /*vendorCode*/) {
+        // nothing
+    }
+
+    void cancel() {
+        // nothing
+    }
   private:
     fingerprint_device_t *mDevice;
 };