system/extras: ext4_utils/wipe.c: Fix up ifdefs

Change-Id: I17ee3e9522b557ba6dcdc6f5cc2fd5d4be13cd06
Fix wipe.c

Change-Id: I25466dac9e493ce21194e07f7e632c2713fa7474
fix building

Change-Id: Id148f583f60d72db2dfcf08d3752310152f02673
fix building

Change-Id: Ibcb46c7c4315b46cb55ce2259326db411575d4cc