Revert "lpmake: Don't assume a device is retrofit if it has one block device for super."

This reverts commit 13945230d36282a0dd2ad7c240f2b88ffc506205.

Reason for revert: Potential culprit for Bug b/144809373 - verifying through Forrest before revert submission

Change-Id: Ic4ed750a5386f6f45a871ac7112142a6991dfd2c
1 file changed