rename stringprintf to stringprintf.h
重命名stringprintf到stringprintf.h

Signed-off-by: Wanpeng Song <swpustc@mail.ustc.edu.cn>
rename xxstringprintf to _xxstringprintf.h
重命名xxstringprintf到_xxstringprintf.h

Signed-off-by: Wanpeng Song <swpustc@mail.ustc.edu.cn>
Update dumpImageSize version to 1.1.5.6
更新dumpImageSize版本到1.1.5.6

Signed-off-by: Wanpeng Song <swpustc@mail.ustc.edu.cn>