i965: Fix barrier count shift in scalar TCS backend.
i965: Fix barrier count shift in scalar TCS backend.

The "Barrier Count" field goes in 14:9 of m0.2.  The vec4 backend
correctly shifts by 9, but the scalar backend only shifted by 8.

It's not like this changed - I think I just made a typo when writing
the original scalar TCS backend code.

Cc: 59f39c0db42d4479a46b02d4d2bc11120e37bb44@lists.freedesktop.org
Signed-off-by: Kenneth Graunke <bd2562f754ec92342f93f61c25d731e290a2ffa8@whitecape.org>
Reviewed-by: Alejandro Piñeiro <5dfedca1889afcca58e9b95acd46f78f54f166ed@igalia.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler