We will convert a -16384 to 16384 if needed because mkfs.f2fs
does not like negative numbers like make_ext4fs does. Also enable
trim by default on f2fs.
Change-Id: I8b41e65d1ff894433665c65d0569a51803c67891
Some roms need the recovery-from-boot.p for auto update
of recovery. Typically the use install-[romname]-recovery.sh.
So only disable if install-recovery.sh is present.
Change-Id: I01f89afc87b9d375d67b44b8b5e9228868a47d69
dhacker29