[Add] 打通Kconfiglib配置操作

scripts/kconfig/Kconfiglib/examples/dumpvars.py

@@ -0,0 +1,15 @@
+# Prints all (set) environment variables referenced in the Kconfig files
+# together with their values, as a list of assignments.
+#
+# Note: This only works for environment variables referenced via the $(FOO)
+# preprocessor syntax. The older $FOO syntax is maintained for backwards
+# compatibility.
+
+import os
+import sys
+
+import kconfiglib
+
+
+print(" ".join("{}='{}'".format(var, os.environ[var])
+               for var in kconfiglib.Kconfig(sys.argv[1]).env_vars))