EMC voltage for Mariko; Fix #60; Show battery & voltage info in overlay on Erista

- From previous analysis, EMC voltage is set before AMS loads on Mariko, and will not be set again or changed afterwards.

- sys-clk-OC will take care of setting emc voltage on Mariko once it loads.

- OS will not hang at boot as it always boots with EMC @ 1600 MHz.

Source/Atmosphere/stratosphere/loader/source/oc/ptm/ptm.hpp

@@ -16,7 +16,7 @@
 
 #pragma once
 
-#include "../oc_suite_common.hpp"
+#include "../oc_common.hpp"
 
 namespace ams::ldr::oc::ptm {