[Feature][T8TSK-288][FOTA]when bl2 bad change to another slot

Only Configure: No
Affected branch: GSW3.0-No-Connman
Affected module: fota
Is it addected on both ZXIC and MTK: only MTK
Self-test: Yes
Doc Update: No

Change-Id: I59dc660f829e62767df10bf43c750299b2dec08a
3 files changed