1-install: change default answer of system rw mode

Mauro suggested to keep system read-write mode on auto updating.
That's reasonable. So change the default answer for that.
1 file changed
tree: 724826836907cfb60b7a2ee34b8251cdb55dd4a9
  1. boot/
  2. editdisklbl/
  3. initrd/
  4. install/
  5. rpm/
  6. Android.mk
  7. CleanSpec.mk