Revert "Revert "Add the 'bdev_type' attribute to all block devic..." am: 5503dda0d7 am: fc84772c7c

Original change: https://android-review.googlesource.com/c/device/mediatek/wembley-sepolicy/+/1862219

Change-Id: Ia28a2e1846eb40799e34e2af734b4934d514dd62