mnt: Add simfs entry to a list of supported fs

simfs is used in OpenVZ containers, so lets understand it
and don't fail on its meeting.
Signed-off-by: Cyrill Gorcunov <gorcunov@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@parallels.com>

mount.c

@@ -349,6 +349,7 @@ static struct fstype fstypes[] = {
 	[FSTYPE__BINFMT_MISC]	= { "binfmt_misc", binfmt_misc_dump },
 	[FSTYPE__TMPFS]		= { "tmpfs", tmpfs_dump, tmpfs_restore },
 	[FSTYPE__DEVPTS]	= { "devpts" },
+	[FSTYPE__SIMFS]		= { "simfs" },
 };
 
 struct fstype *find_fstype_by_name(char *fst)

protobuf/mnt.proto

@@ -6,6 +6,7 @@ enum fstype {
 	BINFMT_MISC		= 4;
 	TMPFS			= 5;
 	DEVPTS			= 6;
+	SIMFS			= 7;
 };
 
 message mnt_entry {