gallium/radeon: fix PIPE_QUERY_GPU_FINISHED
gallium/radeon: fix PIPE_QUERY_GPU_FINISHED

Broken by the addition of r600_multi_fence
in 3b37155a68acc351cba86a1fa142bd0de2192d4c

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=89014

Reviewed-by: Michel Dänzer <242b79f0804cf52679d58f27ed754158c1323c75@amd.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler