drm/msm: add perf logging debugfs

Signed-off-by: Rob Clark <robdclark@gmail.com>
diff --git a/drivers/gpu/drm/msm/Makefile b/drivers/gpu/drm/msm/Makefile
index 9a506b5..93ca49c 100644
--- a/drivers/gpu/drm/msm/Makefile
+++ b/drivers/gpu/drm/msm/Makefile
@@ -34,6 +34,7 @@
 	msm_gem_submit.o \
 	msm_gpu.o \
 	msm_iommu.o \
+	msm_perf.o \
 	msm_rd.o \
 	msm_ringbuffer.o