f2fs-tools: Update Homepage
Change homepage to git as the f2fs-tools is no longer maintained through sf.net.
Reference to https://sourceforge.net/projects/f2fs-tools/.
Signed-off-by: Zheng Ruoqin <zhengrq.fnst@cn.fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>