添加qspi存储w25q128

添加littlefs文件系统
存储挂载路径/sys

packages/littlefs-v2.11.2/SConscript

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+# RT-Thread building script for component
+
+import os
+import shutil
+
+from building import *
+
+cwd = GetCurrentDir()
+src = Glob('*.c') + Glob('*.cpp') 
+CPPPATH = [cwd]
+CPPDEFINES = ['LFS_CONFIG=lfs_config.h']
+
+#delate non-used files
+try:
+    shutil.rmtree(os.path.join(cwd,'.github'))
+    shutil.rmtree(os.path.join(cwd,'bd'))
+    shutil.rmtree(os.path.join(cwd,'scripts'))
+    shutil.rmtree(os.path.join(cwd,'tests'))
+    os.remove(os.path.join(cwd,'Makefile'))
+except:
+    pass
+
+group = DefineGroup('littlefs', src, depend = ['PKG_USING_LITTLEFS', 'RT_USING_DFS'], CPPPATH = CPPPATH, CPPDEFINES = CPPDEFINES)
+
+Return('group')