f2fs-tools: update homepage link

As noted in the sourceforge page, the project is not using sourceforge
anymore. Use the gitweb summary page instead.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
(cherry picked from commit a74a41d834042ec1f2651cfd4adc23e21c8a8a22)
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/f2fs-tools/Config.in

@@ -6,7 +6,7 @@ config BR2_PACKAGE_F2FS_TOOLS
 	help
 	  Tools for Flash-Friendly File System (F2FS)
 
-	  http://sourceforge.net/projects/f2fs-tools/
+	  https://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs-tools.git
 
 comment "f2fs-tools needs a toolchain w/ wchar"
 	depends on !BR2_USE_WCHAR