vs985: bring in our variant-specific fstab

Change-Id: Id6bda5c6fb0a8d0ad7045194cb1e88e38aa63cfa
fstab: support ext4 and f2fs data and cache

Change-Id: Id775171986a7a0565e3207e53d24474303a47648
vs985: update readme, flair included

Change-Id: I06fe01cd72999cf140aca6e3885d1fa2dbcd7b19