Use omni-armv6 srec

Change-Id: I065aadfc4bbdd7ea71bf45c0778ca59235d8f611
Fixed new media-legacy

Change-Id: Ie60bf92e484b97780b95f61fd5d23bae14f49e26
Shift to omnirom/android_bootable_recovery

Change-Id: I92ba3e8b454b8f0cec05fabe4cadc143f1edbdde