panfrost: Implement Z32F_S8 blits

Requires the ability to texture the stencil-only portion, and then
u_blitter kicks in for the rest.

v2: Fix dEQP-GLES31.functional.stencil_texturing.*

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5858>
diff --git a/src/panfrost/encoder/pan_format.c b/src/panfrost/encoder/pan_format.c
index 23af838..7600616 100644
--- a/src/panfrost/encoder/pan_format.c
+++ b/src/panfrost/encoder/pan_format.c
@@ -159,6 +159,7 @@
         [PIPE_FORMAT_Z24X8_UNORM]		= { MALI_Z24X8_UNORM, _TZ },
         [PIPE_FORMAT_Z32_FLOAT]		        = { MALI_R32F, _TZ },
         [PIPE_FORMAT_Z32_FLOAT_S8X24_UINT]	= { MALI_R32F, _TZ },
+        [PIPE_FORMAT_X32_S8X24_UINT]	        = { MALI_R8UI, _T },
         [PIPE_FORMAT_X24S8_UINT]		= { MALI_RGBA8UI, _TZ },
         [PIPE_FORMAT_S8_UINT]   		= { MALI_R8UI, _T },