Use a base time throughout rtc and kernel time.

This way, time doesn't move abnormally as far as the game can tell,
even when savestates and fast forward and pause are used.

Core/HLE/sceKernel.cpp

@@ -57,6 +57,7 @@
 #include "scePower.h"
 #include "sceUtility.h"
 #include "sceUmd.h"
+#include "sceRtc.h"
 #include "sceSsl.h"
 #include "sceSas.h"
 #include "scePsmf.h"
@@ -108,6 +109,7 @@ void __KernelInit()
 	__MpegInit(PSP_CoreParameter().useMediaEngine);
 	__PsmfInit();
 	__CtrlInit();
+	__RtcInit();
 	__SslInit();
 	__ImposeInit();
 	__UsbInit();
@@ -201,6 +203,7 @@ void __KernelDoState(PointerWrap &p)
 	__PowerDoState(p);
 	__PsmfDoState(p);
 	__PsmfPlayerDoState(p);
+	__RtcDoState(p);
 	__SasDoState(p);
 	__SslDoState(p);
 	__UmdDoState(p);