GitLab

Force-clean the *.img files under $OUT so that they can be regenerated
according to the new BoardConfig.mk, reflecting the new partition table for
Rev-E devices.

Change-Id: Id2b8e5748e91be732eab43b82a74b656c4feef6c
Signed-off-by: Iliyan Malchev <malchev@google.com>