[change] the location of moduserfunc.c

SConscript

@@ -11,6 +11,7 @@ src    += Glob('extmod/*.c')
 src    += Glob('port/*.c')
 src    += Glob('port/modules/*.c')
 src    += Glob('port/modules/machine/*.c')
+src    += Glob('port/modules/user/*.c')
 src    += Glob('lib/netutils/*.c')
 src    += Glob('lib/timeutils/*.c')
 src    += Glob('drivers/bus/*.c')