anv: Use corresponding type from the vector allocation

anv: Use corresponding type from the vector allocation

We didn't notice this issue much because the 2 struct share a similar
layout, expect for the additional fields...

We run into that issue in Anv :

==15236== Invalid write of size 8
==15236==    at 0x8CF3939C: anv_state_table_expand_range (anv_allocator.c:211)
==15236==    by 0x8CF394D5: anv_state_table_grow (anv_allocator.c:264)
==15236==    by 0x8CF3967E: anv_state_table_add (anv_allocator.c:312)
==15236==    by 0x8CF3B13C: anv_state_pool_alloc_no_vg (anv_allocator.c:1167)
==15236==    by 0x8CF3B2B0: anv_state_pool_alloc (anv_allocator.c:1190)
==15236==    by 0x8CF60871: alloc_surface_state (anv_image.c:1122)
==15236==    by 0x8CF61FF9: anv_CreateImageView (anv_image.c:1519)
==15236==    by 0x8BCBD2ED: vkCreateImageView (trampoline.c:1358)
==15236==  Address 0x8994ef10 is 0 bytes after a block of size 128 alloc'd
==15236==    at 0x4C2FB0F: malloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==15236==    by 0x8D2578E6: u_vector_init (u_vector.c:47)
==15236==    by 0x8CF3929A: anv_state_table_init (anv_allocator.c:168)
==15236==    by 0x8CF3A99A: anv_state_pool_init (anv_allocator.c:921)
==15236==    by 0x8CF56517: anv_CreateDevice (anv_device.c:1909)
==15236==    by 0x8BCB4FBA: terminator_CreateDevice (loader.c:6073)
==15236==    by 0x8DD2CB3D: ??? (in /home/djdeath/.steam/ubuntu12_64/libVkLayer_steam_fossilize.so)
==15236==    by 0x8DF4D241: vkCreateDevice (in /home/djdeath/.steam/ubuntu12_64/steamoverlayvulkanlayer.so)
==15236==    by 0x8BCB35C6: loader_create_device_chain (loader.c:5449)
==15236==    by 0x8BCBC230: vkCreateDevice (trampoline.c:838)

v2: Rename mmap_cleanups to avoid confusion (Caio)

v3: s/fail_mmap_cleanups/fail_cleanups/ (Caio)

Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=110648
Cc: <mesa-stable@lists.freedesktop.org>
Reviewed-by: Caio Marcelo de Oliveira Filho <caio.oliveira@intel.com>