sync handling of subsystems

- add DUMMY-define in case the subsystem is enabled but not available (filesystem/misc/locale)
- add missing PSP/VITA-filesystem defines
- sync the order of filesystems in SDL_config.h.cmake/in
- add option to disable locale subsystem in configure

include/SDL_config.h.cmake

@@ -493,6 +493,12 @@
 #cmakedefine SDL_FILESYSTEM_VITA @SDL_FILESYSTEM_VITA@
 #cmakedefine SDL_FILESYSTEM_PSP @SDL_FILESYSTEM_PSP@
 
+/* Enable misc subsystem */
+#cmakedefine SDL_MISC_DUMMY @SDL_MISC_DUMMY@
+
+/* Enable locale subsystem */
+#cmakedefine SDL_LOCALE_DUMMY @SDL_LOCALE_DUMMY@
+
 /* Enable assembly routines */
 #cmakedefine SDL_ASSEMBLY_ROUTINES @SDL_ASSEMBLY_ROUTINES@
 #cmakedefine SDL_ALTIVEC_BLITTERS @SDL_ALTIVEC_BLITTERS@

include/SDL_config.h.in

@@ -447,16 +447,24 @@
 #undef SDL_POWER_HARDWIRED
 
 /* Enable system filesystem support */
+#undef SDL_FILESYSTEM_ANDROID
 #undef SDL_FILESYSTEM_HAIKU
 #undef SDL_FILESYSTEM_COCOA
 #undef SDL_FILESYSTEM_DUMMY
+#undef SDL_FILESYSTEM_RISCOS
 #undef SDL_FILESYSTEM_UNIX
 #undef SDL_FILESYSTEM_WINDOWS
 #undef SDL_FILESYSTEM_NACL
-#undef SDL_FILESYSTEM_ANDROID
 #undef SDL_FILESYSTEM_EMSCRIPTEN
 #undef SDL_FILESYSTEM_OS2
-#undef SDL_FILESYSTEM_RISCOS
+#undef SDL_FILESYSTEM_VITA
+#undef SDL_FILESYSTEM_PSP
+
+/* Enable misc subsystem */
+#undef SDL_MISC_DUMMY
+
+/* Enable locale subsystem */
+#undef SDL_LOCALE_DUMMY
 
 /* Enable assembly routines */
 #undef SDL_ASSEMBLY_ROUTINES