fate: Add shorthands for acodec PCM and ADPCM tests

tests/fate/acodec.mak

@@ -18,7 +18,9 @@ FATE_ACODEC_PCM-$(call ENCDEC, PCM_F32LE, WAV) += f32le
 FATE_ACODEC_PCM-$(call ENCDEC, PCM_F64BE, AU)  += f64be
 FATE_ACODEC_PCM-$(call ENCDEC, PCM_F64LE, WAV) += f64le
 
-FATE_ACODEC += $(FATE_ACODEC_PCM-yes:%=fate-acodec-pcm-%)
+FATE_ACODEC_PCM := $(FATE_ACODEC_PCM-yes:%=fate-acodec-pcm-%)
+FATE_AVCONV += $(FATE_ACODEC_PCM)
+fate-acodec-pcm: $(FATE_ACODEC_PCM)
 
 fate-acodec-pcm-%: FMT = wav
 fate-acodec-pcm-%: CODEC = pcm_$(@:fate-acodec-pcm-%=%)
@@ -34,7 +36,9 @@ FATE_ACODEC_ADPCM-$(call ENCDEC, ADPCM_MS,      WAV)  += ms
 FATE_ACODEC_ADPCM-$(call ENCDEC, ADPCM_SWF,     FLV)  += swf
 FATE_ACODEC_ADPCM-$(call ENCDEC, ADPCM_YAMAHA,  WAV)  += yamaha
 
-FATE_ACODEC += $(FATE_ACODEC_ADPCM-yes:%=fate-acodec-adpcm-%)
+FATE_ACODEC_ADPCM := $(FATE_ACODEC_ADPCM-yes:%=fate-acodec-adpcm-%)
+FATE_AVCONV += $(FATE_ACODEC_ADPCM)
+fate-acodec-adpcm: $(FATE_ACODEC_ADPCM)
 
 fate-acodec-adpcm-%: CODEC = adpcm_$(@:fate-acodec-adpcm-%=%)