panfrost: Ensure final.no_colour is initialized.

Fix warning reported by Coverity Scan.

Uninitialized scalar variable (UNINIT)
uninit_use: Using uninitialized value final. Field final.no_colour is
uninitialized.

Fixes: 3e4e849e6a96 ("panfrost: Disable tib read/write when colourmask = 0x0")
Signed-off-by: Vinson Lee <vlee@freedesktop.org>
Reviewed-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/5183>
1 file changed