drm/i915: Add spaces before compound GEM_TRACE

Add a space between the prefixed format and the users format so that the
join are not mistakenly combined into one long word.

Fixes: 639f2f24 ("drm/i915: Introduce new macros for tracing")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Venkata Sandeep Dhanalakota <venkata.s.dhanalakota@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191223204411.2355304-1-chris@chris-wilson.co.uk

drivers/gpu/drm/i915/gt/intel_context.h

@@ -19,7 +19,7 @@
 
 #define CE_TRACE(ce, fmt, ...) do {					\
 	const struct intel_context *ce__ = (ce);			\
-	ENGINE_TRACE(ce__->engine, "context:%llx" fmt,			\
+	ENGINE_TRACE(ce__->engine, "context:%llx " fmt,			\
 		     ce__->timeline->fence_context,			\
 		     ##__VA_ARGS__);					\
 } while (0)

drivers/gpu/drm/i915/i915_request.h

@@ -51,7 +51,7 @@ struct i915_capture_list {
 
 #define RQ_TRACE(rq, fmt, ...) do {					\
 	const struct i915_request *rq__ = (rq);				\
-	ENGINE_TRACE(rq__->engine, "fence %llx:%lld, current %d" fmt,	\
+	ENGINE_TRACE(rq__->engine, "fence %llx:%lld, current %d " fmt,	\
 		     rq__->fence.context, rq__->fence.seqno,		\
 		     hwsp_seqno(rq__), ##__VA_ARGS__);			\
 } while (0)