Since Ext4 doesn't implement "-o sync", it commits metadata at every 5 secs.
This may cause /metadata corruption.
Bug: 162883014
Change-Id: Icd38754bad1b1529d01165ea8c703c214d20bb4b
Signed-off-by: Randall Huang <huangrandall@google.com>
Making these partitions erofs saves ~674MB, which lets us reserve
significantly more space on /product.
Change-Id: I88984f6137c0bc9f01da742a7a485445c2162157