lib/chv: CHV media pipeline command sequence

Enable gem_media_fill test for CHV platform.  In addition to differences in
media IP blocks from Broadwell, the command sequence also differs for
programming the media pipeline, e.g., should not send a MEDIA_STATE_FLUSH
right before the MI_BATCH_BUFFER_END of batch buffers using MEDIA_OBJECT.
Uses explicit IS_BROADWELL / IS_CHERRYVIEW to distinguish in gen8 media
fill handling.

Signed-off-by: Sean V Kelley <sean.v.kelley@intel.com>
Reviewed-by: Xiang, Haihao <haihao.xiang@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
diff --git a/lib/Makefile.sources b/lib/Makefile.sources
index aa9a130..242d2e0 100644
--- a/lib/Makefile.sources
+++ b/lib/Makefile.sources
@@ -25,6 +25,7 @@
 	media_fill.h            \
 	media_fill_gen7.c       \
 	media_fill_gen8.c       \
+	media_fill_gen8lp.c     \
 	gen7_media.h            \
 	gen8_media.h            \
 	rendercopy_i915.c	\