ams_mitm: add titles dir compat shim (to remove in 0.10.1)

stratosphere/ams_mitm/source/amsmitm_fs_utils.hpp

@@ -38,6 +38,9 @@ namespace ams::mitm::fs {
     Result OpenAtmosphereSdRomfsDirectory(FsDir *out, ncm::ProgramId program_id, const char *path, u32 mode);
     Result OpenAtmosphereRomfsDirectory(FsDir *out, ncm::ProgramId program_id, const char *path, u32 mode, FsFileSystem *fs);
 
+    /* TODO: Remove this in Atmosphere 0.10.1. */
+    Result RenameProgramDirectoryForCompatibility(const char *dir_name);
+
     bool HasSdRomfsContent(ncm::ProgramId program_id);
 
     Result SaveAtmosphereSdFile(FsFile *out, ncm::ProgramId program_id, const char *path, void *data, size_t size);