[Feature][task-view-762][FOTA] move the real fota functions to lynq-fota-tool process

Only Configure: No
Affected branch: ZK-first-oem-release
Affected module: FOTA
Is it affected on both ZXIC and MTK: only MTK
Self-test: Yes
Doc Update: No

Change-Id: Ie0661abd3f7b56e56deae2a0099b9070f07aeb08
20 files changed