[src][Kconfig] 增加隐性RT_KSERVICE_USING_TINY_FFS定义

src/Kconfig

@@ -135,6 +135,10 @@ config RT_USING_ASM_MEMCPY
     bool
     default n
 
+config RT_KSERVICE_USING_TINY_FFS
+    bool "Enable kservice to use tiny ffs"
+    default n
+
 endmenu
 
 menuconfig RT_DEBUG