fix: writeback: Refine the show_inode_state() macro definition (v6.12)

fix: writeback: Refine the show_inode_state() macro definition (v6.12)

See upstream commit :

  commit 459ca85ae1feff78d1518344df88bb79a092780c
  Author: Julian Sun <sunjunchao2870@gmail.com>
  Date:   Wed Aug 28 16:13:59 2024 +0800

    writeback: Refine the show_inode_state() macro definition

    Currently, the show_inode_state() macro only prints
    part of the state of inode->i_state. Let’s improve it
    to display more of its state.

Change-Id: Idaebd56f5775205f8a5c76e117c5ab65f7f1754b
Signed-off-by: Michael Jeanson <mjeanson@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>