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/spl/source/spl_ctr_drbg.cpp

@@ -20,7 +20,7 @@
 
 #include "spl_ctr_drbg.hpp"
 
-namespace sts::spl {
+namespace ams::spl {
 
     void CtrDrbg::Update(const void *data) {
         aes128ContextCreate(&this->aes_ctx, this->key, true);