[SF] Update to use RefreshRateChangedDebugData.refreshPeriodNanos

Checks for Interface Version is >= 3 and vrr_config flag is enabled
before using the refreshPeriodNanos

Update getDisplayConfigurationsSupported to
isVrrSupported

BUG: 314527560
Test: Check refresh rate indicator value by
faking refreshRateNanos from the AidlComposerHal::onRefreshRateChangedDebug

Change-Id: If5cac2c3101ac721f653d275d9b165c94ff2716d
diff --git a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
index 3690219..3b17857 100644
--- a/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
+++ b/services/surfaceflinger/DisplayHardware/AidlComposerHal.cpp
@@ -288,7 +288,7 @@
     }
 }
 
-bool AidlComposer::getDisplayConfigurationsSupported() const {
+bool AidlComposer::isVrrSupported() const {
     return mComposerInterfaceVersion >= 3 && FlagManager::getInstance().vrr_config();
 }