[Bufgix][API-1207][FOTA]delete check partition_nand in fota and upgrade cpu core check

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: I1f2c2c58d391ae44c40f341eebba9b93000fa306
1 file changed