修改config.bib需要clean sysgen吗？
IF IMGTRUSTROMONLY
IF IMGNOTALLKMODE
; ROMFLAGS=12
ROMFLAGS=13
ELSE
; ROMFLAGS=10
ROMFLAGS=11
ENDIF
ELSE ; IMGTRUSTROMONLY
IF IMGNOTALLKMODE
; ROMFLAGS=02
ROMFLAGS=03
ELSE
; ROMFLAGS=00
ROMFLAGS=01
ENDIF
ENDIF ; IMGTRUSTROMONLY
