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/ams_mitm/source/set_mitm/setsys_firmware_version.hpp

@@ -21,5 +21,5 @@
 class VersionManager {
     public:
         static void Initialize();
-        static Result GetFirmwareVersion(sts::ncm::TitleId title_id, SetSysFirmwareVersion *out);
+        static Result GetFirmwareVersion(ams::ncm::TitleId title_id, SetSysFirmwareVersion *out);
 };