Add back a video file required by ActiveMap test.

Change-Id: I3ef0e1d67678a4e49dd38e8e6f5e98b14cf30407

test/test-data.mk

diff --git a/test/test-data.mk b/test/test-data.mk
index 8310e27..0a28633 100644
--- a/test/test-data.mk
+++ b/test/test-data.mk
@@ -18,6 +18,7 @@
 LIBVPX_TEST_DATA-$(CONFIG_ENCODERS) += park_joy_90p_8_444.y4m
 LIBVPX_TEST_DATA-$(CONFIG_ENCODERS) += park_joy_90p_8_440.yuv
 
+LIBVPX_TEST_DATA-$(CONFIG_VP10_ENCODER) += desktop_credits.y4m
 LIBVPX_TEST_DATA-$(CONFIG_VP10_ENCODER) += niklas_1280_720_30.y4m
 LIBVPX_TEST_DATA-$(CONFIG_VP10_ENCODER) += rush_hour_444.y4m
 LIBVPX_TEST_DATA-$(CONFIG_VP10_ENCODER) += screendata.y4m