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/libstratosphere/source/updater/updater_files.cpp

@@ -19,7 +19,7 @@
 
 #include "updater_files.hpp"
 
-namespace sts::updater {
+namespace ams::updater {
 
     Result ReadFile(size_t *out_size, void *dst, size_t dst_size, const char *path) {
         FILE *fp = fopen(path, "rb");