namespace sts -> namespace ams

namespace sts::ams -> ams::exosphere, ams::.

This is to facilitate future use of ams:: namespace code in
mesosphere, as we'll want to include ams::util, ams::result, ams::svc...

stratosphere/boot/source/boot_pcv.cpp

@@ -21,9 +21,9 @@
 #include "i2c/driver/impl/i2c_pcv.hpp"
 #include "i2c/driver/impl/i2c_registers.hpp"
 
-using namespace sts::i2c::driver::impl;
+using namespace ams::i2c::driver::impl;
 
-namespace sts::pcv {
+namespace ams::pcv {
 
     void Initialize() {
         /* Don't do anything. */