Use ftl::Flags for InputReaderConfiguration::Change

Convert the config flags into an enum class and use ftl::Flags when
dealing with configuration changes.

Bug: 245989146
Test: Presubmit
Change-Id: I0aed947ce433a1def11a60e73a14575561374700
diff --git a/services/inputflinger/reader/include/InputReader.h b/services/inputflinger/reader/include/InputReader.h
index 120e150..9112913 100644
--- a/services/inputflinger/reader/include/InputReader.h
+++ b/services/inputflinger/reader/include/InputReader.h
@@ -77,7 +77,7 @@
     bool hasKeys(int32_t deviceId, uint32_t sourceMask, const std::vector<int32_t>& keyCodes,
                  uint8_t* outFlags) override;
 
-    void requestRefreshConfiguration(uint32_t changes) override;
+    void requestRefreshConfiguration(ConfigurationChanges changes) override;
 
     void vibrate(int32_t deviceId, const VibrationSequence& sequence, ssize_t repeat,
                  int32_t token) override;
@@ -233,8 +233,8 @@
     nsecs_t mNextTimeout GUARDED_BY(mLock);
     void requestTimeoutAtTimeLocked(nsecs_t when) REQUIRES(mLock);
 
-    uint32_t mConfigurationChangesToRefresh GUARDED_BY(mLock);
-    void refreshConfigurationLocked(uint32_t changes) REQUIRES(mLock);
+    ConfigurationChanges mConfigurationChangesToRefresh GUARDED_BY(mLock);
+    void refreshConfigurationLocked(ConfigurationChanges changes) REQUIRES(mLock);
 
     void notifyAll(std::list<NotifyArgs>&& argsList);