configfs: change depends -> select SYSFS
Nicholas Bellinger authored

This patch changes configfs to select SYSFS to fix the following:

warning: (TARGET_CORE && GFS2_FS) selects CONFIGFS_FS which has unmet direct dependencies (SYSFS)
Reported-by: default avatarRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: default avatarNicholas A. Bellinger <nab@linux-iscsi.org>
Acked-by: default avatarJoel Becker <jlbec@evilplan.org>
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