mei: gsc: fix remove operations order

mei: gsc: fix remove operations order

The mei disconnect should be the last operation in remove flow.
Otherwise the device is used after destruction.
Fix minor free flow that happens after device destruction too.

The fault leads to the following oops in Intel Gfx CI:

<4>[  267.871331] Oops: general protection fault, probably for non-canonical address 0x6b6b6b6b6b6b6bcb: 0000 [#1] SMP NOPTI
...
<4>[  267.871410] RIP: 0010:mei_gsc_remove+0x44/0x90 [mei_gsc]
...
<4>[  267.871555] Call Trace:
<4>[  267.871562]  <TASK>
<4>[  267.871570]  auxiliary_bus_remove+0x1b/0x30
<4>[  267.871589]  device_remove+0x43/0x80
<4>[  267.871604]  device_release_driver_internal+0x215/0x280
<4>[  267.871619]  device_release_driver+0x12/0x20
<4>[  267.871630]  bus_remove_device+0xdc/0x150
<4>[  267.871645]  device_del+0x15f/0x3b0
<4>[  267.871656]  ? bus_unregister_notifier+0x37/0x50
<4>[  267.871672]  gsc_destroy_one.isra.0+0x44/0x210 [i915]
<4>[  267.872295]  intel_gsc_fini+0x28/0x50 [i915]
<4>[  267.872860]  intel_gt_driver_unregister+0x2c/0x80 [i915]
<4>[  267.873300]  i915_driver_remove+0x6e/0x150 [i915]
<4>[  267.873694]  i915_pci_remove+0x1e/0x40 [i915]
<4>[  267.874095]  pci_device_remove+0x3e/0xb0
<4>[  267.874111]  device_remove+0x43/0x80
<4>[  267.874126]  device_release_driver_internal+0x215/0x280
<4>[  267.874137]  ? bus_find_device+0xa5/0xe0
<4>[  267.874153]  device_driver_detach+0x14/0x20
<4>[  267.874164]  unbind_store+0xac/0xc0
<4>[  267.874178]  drv_attr_store+0x21/0x50
<4>[  267.874190]  sysfs_kf_write+0x4a/0x80
<4>[  267.874204]  kernfs_fop_write_iter+0x188/0x240
<4>[  267.874222]  vfs_write+0x283/0x540
<4>[  267.874241]  ksys_write+0x6f/0xf0
<4>[  267.874253]  __x64_sys_write+0x19/0x30
<4>[  267.874264]  x64_sys_call+0x79/0x26a0
<4>[  267.874277]  do_syscall_64+0x93/0xd50
<4>[  267.874291]  ? do_syscall_64+0x1a2/0xd50
<4>[  267.874301]  ? do_syscall_64+0x1a2/0xd50
<4>[  267.874313]  ? do_syscall_64+0x1a2/0xd50
<4>[  267.874324]  ? clear_bhb_loop+0x30/0x80
<4>[  267.874336]  ? clear_bhb_loop+0x30/0x80
<4>[  267.874349]  entry_SYSCALL_64_after_hwframe+0x76/0x7e

Fixes: 7704e6be4ed2 ("mei: hook mei_device on class device")
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Link: https://lore.kernel.org/r/20250915124554.2263330-1-alexander.usyskin@intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>