[PATCH -next] init/Kconfig: fix unmet direct dependencies

[Ren Zhijie]

Commit 3c07bfce92a5 ("proc: make config PROC_CHILDREN depend on PROC_FS") 
make config PROC_CHILDREN depend on PROC_FS.

When CONFIG_PROC_FS is not set and CONFIG_CHECKPOINT_RESTORE=y,
make menuconfig screams like this:

WARNING: unmet direct dependencies detected for PROC_CHILDREN
  Depends on [n]: PROC_FS [=n]
  Selected by [y]:
  - CHECKPOINT_RESTORE [=y]

So add PROC_FS to dependencies to fix this.
Fixes: 3c07bfce92a5 ("proc: make config PROC_CHILDREN depend on PROC_FS")
Signed-off-by: Ren Zhijie <renzhijie2@xxxxxxxxxx>
---
 init/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/init/Kconfig b/init/Kconfig
index e11307310fc1..fc32b28fe93e 100644
--- a/init/Kconfig
+++ b/init/Kconfig
@@ -1273,6 +1273,7 @@ endif # NAMESPACES
 
 config CHECKPOINT_RESTORE
 	bool "Checkpoint/restore support"
+	select PROC_FS
 	select PROC_CHILDREN
 	select KCMP
 	default n
-- 
2.17.1