fusee_cpp: cache cleanup, confirmed working on hardware

libraries/libexosphere/include/exosphere/clkrst.hpp

@@ -33,6 +33,9 @@ namespace ams::clkrst {
     void EnableCldvfsClock();
     void EnableTzramClock();
 
+    void EnableCache2Clock();
+    void EnableCram2Clock();
+
     void EnableHost1xClock();
     void EnableTsecClock();
     void EnableSorSafeClock();