Change init to use libfs_mgr to mount filesystems.

The new fs_mgr library moves much of the knowledge of what filesystems
to mount into a new fstab.<device> file, and just calls one function to
mount all the filesystems.

Change-Id: If3db37530a0676000cba3e679db27aca734227e5
diff --git a/init/init_parser.c b/init/init_parser.c
index f538450..5393e52 100644
--- a/init/init_parser.c
+++ b/init/init_parser.c
@@ -122,6 +122,7 @@
         break;
     case 'm':
         if (!strcmp(s, "kdir")) return K_mkdir;
+        if (!strcmp(s, "ount_all")) return K_mount_all;
         if (!strcmp(s, "ount")) return K_mount;
         break;
     case 'o':