freedreno/ir3: Fix compiler warning from the setjmp fails path.

The TRY() macro doesn't call the contents if we fail to set up
setjmp/longjmp.

Fixes: 3d6e4a201af0 ("freedreno/decode: try harder to not crash in disasm")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/6323>
1 file changed