fate/filter-video: Remove unnecessary dependency from filter-pp[1-6]

filter-pp and filter-pp7 are the only ones of the filter-pp* tests
that use the file generated by fate-vsynth1-mpeg4-qprd.
Also combine the dependency on this test for all the tests that need it.

Signed-off-by: Andreas Rheinhardt <andreas.rheinhardt@outlook.com>

tests/fate/filter-video.mak

@@ -583,7 +583,9 @@ fate-filter-pad: CMD = video_filter "pad=iw*1.5:ih*1.5:iw*0.3:ih*0.2"
 
 FATE_FILTER_PP = fate-filter-pp fate-filter-pp1 fate-filter-pp2 fate-filter-pp3 fate-filter-pp4 fate-filter-pp5 fate-filter-pp6
 FATE_FILTER_VSYNTH-$(CONFIG_PP_FILTER) += $(FATE_FILTER_PP)
-$(FATE_FILTER_PP): fate-vsynth1-mpeg4-qprd
+
+FATE_FILTER_VSYNTH1_MPEG4_QPRD := $(addprefix fate-filter-, pp pp7 spp codecview)
+$(FATE_FILTER_VSYNTH1_MPEG4_QPRD): fate-vsynth1-mpeg4-qprd
 fate-vsynth1-mpeg4-qprd: KEEP_FILES ?= 1
 
 fate-filter-pp:  CMD = framecrc -flags bitexact -export_side_data venc_params -idct simple -i $(TARGET_PATH)/tests/data/fate/vsynth1-mpeg4-qprd.avi -frames:v 5 -flags +bitexact -vf "pp=be/hb/vb/tn/l5/al"
@@ -595,15 +597,12 @@ fate-filter-pp5: CMD = video_filter "pp=md"
 fate-filter-pp6: CMD = video_filter "pp=be/fd"
 
 FATE_FILTER_VSYNTH-$(CONFIG_PP7_FILTER) += fate-filter-pp7
-fate-filter-pp7: fate-vsynth1-mpeg4-qprd
 fate-filter-pp7: CMD = framecrc -flags bitexact -export_side_data venc_params -idct simple -i $(TARGET_PATH)/tests/data/fate/vsynth1-mpeg4-qprd.avi -frames:v 5 -flags +bitexact -vf "pp7"
 
 FATE_FILTER_VSYNTH-$(CONFIG_SPP_FILTER) += fate-filter-spp
-fate-filter-spp: fate-vsynth1-mpeg4-qprd
 fate-filter-spp: CMD = framecrc -flags bitexact -export_side_data venc_params -idct simple -i $(TARGET_PATH)/tests/data/fate/vsynth1-mpeg4-qprd.avi -frames:v 5 -flags +bitexact -vf "spp=idct=simple:dct=int"
 
 FATE_FILTER_VSYNTH-$(CONFIG_CODECVIEW_FILTER) += fate-filter-codecview
-fate-filter-codecview: fate-vsynth1-mpeg4-qprd
 fate-filter-codecview: CMD = framecrc -flags bitexact -idct simple -flags2 +export_mvs -i $(TARGET_PATH)/tests/data/fate/vsynth1-mpeg4-qprd.avi -frames:v 5 -flags +bitexact -vf codecview=mv=pf+bf+bb
 
 FATE_FILTER_VSYNTH-$(call ALLYES, QP_FILTER PP_FILTER) += fate-filter-qp