fate: real: Add dependencies

tests/fate/real.mak

-FATE_SAMPLES_AVCONV += fate-ra-144
+FATE_SAMPLES_AVCONV-$(call DEMDEC, RM, RA_144) += fate-ra-144
 fate-ra-144: CMD = md5 -i $(SAMPLES)/real/ra3_in_rm_file.rm -f s16le
 
-FATE_SAMPLES_AVCONV += fate-ra-288
+FATE_SAMPLES_AVCONV-$(call DEMDEC, RM, RA_288) += fate-ra-288
 fate-ra-288: CMD = pcm -i $(SAMPLES)/real/ra_288.rm
 fate-ra-288: CMP = oneoff
 fate-ra-288: REF = $(SAMPLES)/real/ra_288.pcm
 fate-ra-288: FUZZ = 2
 
-FATE_SAMPLES_AVCONV += fate-ra-cook
+FATE_SAMPLES_AVCONV-$(call DEMDEC, RM, COOK) += fate-ra-cook
 fate-ra-cook: CMD = pcm -i $(SAMPLES)/real/ra_cook.rm
 fate-ra-cook: CMP = oneoff
 fate-ra-cook: REF = $(SAMPLES)/real/ra_cook.pcm
 
-FATE_SAMPLES_AVCONV += fate-ralf
+FATE_SAMPLES_AVCONV-$(call DEMDEC, RM, RALF) += fate-ralf
 fate-ralf: CMD = md5 -i $(SAMPLES)/lossless-audio/luckynight-partial.rmvb -vn -f s16le
 
-FATE_SAMPLES_AVCONV += fate-rv30
+FATE_SAMPLES_AVCONV-$(call DEMDEC, RM, RV30) += fate-rv30
 fate-rv30: CMD = framecrc -flags +bitexact -dct fastint -idct simple -i $(SAMPLES)/real/rv30.rm -an
 
-FATE_SAMPLES_AVCONV += fate-rv40
+FATE_SAMPLES_AVCONV-$(call DEMDEC, RM, RV40) += fate-rv40
 fate-rv40: CMD = framecrc -i $(SAMPLES)/real/spygames-2MB.rmvb -t 10 -an -vsync 0
 
 FATE_SIPR += fate-sipr-5k0
@@ -39,5 +39,5 @@ fate-sipr-16k: REF = $(SAMPLES)/sipr/sipr_16k.pcm
 
 $(FATE_SIPR): CMP = oneoff
 
-FATE_SAMPLES_AVCONV += $(FATE_SIPR)
+FATE_SAMPLES_AVCONV-$(call DEMDEC, RM, SIPR) += $(FATE_SIPR)
 fate-sipr: $(FATE_SIPR)