Enable Magnetometer sensor injection by AIDL flag

Enable the flag to be used by cuttlefish.
Test: Manual.
Bug: 291566976

Change-Id: I2dffc862742b86453e1ffda7954e2b73e1e74c52
diff --git a/sensors/aidl/default/Sensor.cpp b/sensors/aidl/default/Sensor.cpp
index 3bdd8b6..241dd47 100644
--- a/sensors/aidl/default/Sensor.cpp
+++ b/sensors/aidl/default/Sensor.cpp
@@ -268,7 +268,7 @@
     mSensorInfo.fifoReservedEventCount = 0;
     mSensorInfo.fifoMaxEventCount = 0;
     mSensorInfo.requiredPermission = "";
-    mSensorInfo.flags = 0;
+    mSensorInfo.flags = static_cast<uint32_t>(SensorInfo::SENSOR_FLAG_BITS_DATA_INJECTION);
 };
 
 void MagnetometerSensor::readEventPayload(EventPayload& payload) {