i965: Move need_workaround_flush = true to intel_batchbuffer_init.

intel_batchbuffer_init() sets up initial batchbuffer state; it seems
like a reasonable place to initialize this flag.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>

src/mesa/drivers/dri/i965/brw_context.c

@@ -647,8 +647,6 @@ brwCreateContext(gl_api api,
       brw->curbe.next_buf = calloc(1, 4096);
    }
 
-   brw->batch.need_workaround_flush = true;
-
    ctx->VertexProgram._MaintainTnlProgram = true;
    ctx->FragmentProgram._MaintainTexEnvProgram = true;
 

src/mesa/drivers/dri/i965/intel_batchbuffer.c

@@ -70,6 +70,8 @@ intel_batchbuffer_init(struct brw_context *brw)
 						      4096, 4096);
    }
 
+   brw->batch.need_workaround_flush = true;
+
    if (!brw->has_llc) {
       brw->batch.cpu_map = malloc(BATCH_SZ);
       brw->batch.map = brw->batch.cpu_map;