[compiler] 增加SConscript依赖标志 AddDepend (#6534)

* [compiler] 增加SConscript依赖标志 AddDepend

* RT_USING_NEWLIB->RT_USING_NEWLIBC RT_USING_ARM_LIBC->RT_USING_ARMLIBC

* 删除过时的板载测试例程

* [gd32] 移除无用的反汇编文件

* [bsp]移除老旧bsp中对RT_USING_NEWLIBC的手动宏定义

components/libc/compilers/dlib/SConscript

@@ -4,9 +4,10 @@ Import('rtconfig')
 src   = Glob('*.c')
 group = []
 
-CPPDEFINES = ['RT_USING_DLIBC', 'RT_USING_LIBC', '_DLIB_ADD_EXTRA_SYMBOLS=0']
-
 if rtconfig.PLATFORM in ['iccarm']:
+    CPPDEFINES = ['RT_USING_DLIBC', 'RT_USING_LIBC', '_DLIB_ADD_EXTRA_SYMBOLS=0']
+    AddDepend(['RT_USING_DLIBC', 'RT_USING_LIBC'])
+
     if GetDepend('DFS_USING_POSIX'):
         from distutils.version import LooseVersion
         from iar import IARVersion