panfrost: Fix Z24 vs Z32 mixup

We don't actually support Z32_UNORM; the format we've been using as such
is in fact Z24X8 / Z24S8. Fix that and drop Z32_UNORM.

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5069>
diff --git a/src/panfrost/encoder/pan_format.c b/src/panfrost/encoder/pan_format.c
index c14c097..0216727 100644
--- a/src/panfrost/encoder/pan_format.c
+++ b/src/panfrost/encoder/pan_format.c
@@ -110,9 +110,8 @@
 
         [PIPE_FORMAT_R3G3B2_UNORM] 		= { MALI_RGB332_UNORM, _VT },
 
-        [PIPE_FORMAT_Z24_UNORM_S8_UINT]		= { MALI_Z32_UNORM, _TZ },
-        [PIPE_FORMAT_Z24X8_UNORM]		= { MALI_Z32_UNORM, _TZ },
-        [PIPE_FORMAT_Z32_UNORM]		        = { MALI_Z32_UNORM, _TZ },
+        [PIPE_FORMAT_Z24_UNORM_S8_UINT]		= { MALI_Z24X8_UNORM, _TZ },
+        [PIPE_FORMAT_Z24X8_UNORM]		= { MALI_Z24X8_UNORM, _TZ },
         [PIPE_FORMAT_Z32_FLOAT]		        = { MALI_R32F, _TZ },
         [PIPE_FORMAT_Z32_FLOAT_S8X24_UINT]	= { MALI_R32F, _TZ },