add wificycle to savestate (probably an unimportant bug)

add write_enable=FALSE to backupdevice init (possibly an important bug)

desmume/src/mc.cpp

@@ -286,6 +286,7 @@ void BackupDevice::reset()
 	flushPending = false;
 	lazyFlushPending = false;
 	data.resize(0);
+	write_enable = FALSE;
 	data_autodetect.resize(0);
 
 	state = DETECTING;

desmume/src/saves.cpp

@@ -162,6 +162,7 @@ SFORMAT SF_NDS[]={
 	{ "_9CY", 4, 1, &nds.ARM9Cycle},
 	{ "_7CY", 4, 1, &nds.ARM7Cycle},
 	{ "_CYC", 4, 1, &nds.cycles},
+	{ "_WCY", 4, 1, &nds.wifiCycle},
 	{ "_TCY", 4, 8, nds.timerCycle},
 	{ "_TOV", 4, 8, nds.timerOver},
 	{ "_NHB", 4, 1, &nds.nextHBlank},