修复CI问题

Author: ScuDays

components/lwp/vdso/SConscript

@@ -23,9 +23,9 @@ src    +=Glob('kernel/*.S')
 
 
 if not hasattr(rtconfig, 'CPP') or rtconfig.CPP is None:
-    rtconfig.CPP = rtconfig.PREFIX + 'cpp'
+    CPP = rtconfig.PREFIX + 'cpp'
 if not hasattr(rtconfig, 'CPPFLAGS') or rtconfig.CPPFLAGS is None:
-    rtconfig.CPPFLAGS = ' -E -P -x assembler-with-cpp'
+    CPPFLAGS = ' -E -P -x assembler-with-cpp'
 
 if not os.path.exists(cwd + "/user" + "/arch" +"/" + rtconfig.ARCH + "/vdso.lds"):
     Preprocessing("user/arch/" + rtconfig.ARCH + "/vdso.lds.S", ".lds", CPPPATH=[cwd])