Flag --block

This will prevent system being made as an image
for the final zip, and instead use the old file
based flash.

Change-Id: I51e8ef99675a5e14eb1a6cac734b5a0425ea05d7
Fix build

Change-Id: I2e951b1b059f40468eb4a8435eb537c937dbd772

Conflicts:
	core/Makefile
Get rid of squisher

Change-Id: Ie36c64d96bc3e8fedc32f7a631fc070b53e9f391

Conflicts:
	core/Makefile
Fix --block

Change-Id: Iadf8e4650d74cc41ff62918e9592d17802db6683

Conflicts:
	core/Makefile