Previously, brw_try_override_assembly was only called when a debug flag was
enabled. However, during investigations involving workloads such as Steam
games, enabling the debug flag results in excessive NIR and ISA output to
stderr, making debugging more difficult.
This change ensures that brw_try_override_assembly is called when the
INTEL_SHADER_ASM_READ_PATH is set, regardless of the debug flag. This
improves usability in scenarios where minimal debug output is desired.
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35115>