xfs: move xfs_ino_geometry to xfs_shared.h

The inode geometry structure isn't related to ondisk format; it's
support for the mount structure.  Move it to xfs_shared.h.

Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
diff --git a/fs/xfs/xfs_pnfs.c b/fs/xfs/xfs_pnfs.c
index bde2c9f..2d95355 100644
--- a/fs/xfs/xfs_pnfs.c
+++ b/fs/xfs/xfs_pnfs.c
@@ -4,6 +4,7 @@
  */
 #include <linux/iomap.h>
 #include "xfs.h"
+#include "xfs_shared.h"
 #include "xfs_format.h"
 #include "xfs_log_format.h"
 #include "xfs_trans_resv.h"