Include missing linux/magic.h inclusions

Include missing linux/magic.h inclusions where the source file is currently
expecting to get magic numbers through linux/proc_fs.h.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-efi@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

drivers/firmware/efivars.c

@@ -80,6 +80,7 @@
 #include <linux/slab.h>
 #include <linux/pstore.h>
 #include <linux/ctype.h>
+#include <linux/magic.h>
 
 #include <linux/fs.h>
 #include <linux/ramfs.h>

fs/proc/inode.c

@@ -22,6 +22,7 @@
 #include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/mount.h>
+#include <linux/magic.h>
 
 #include <asm/uaccess.h>