lavc/Makefile: Fix standalone compilation of the lame encoder.

Also fix a possible issue with the mpegaudio audiotoolbox decoders.
Fixes ticket #5703.

libavcodec/Makefile

@@ -839,9 +839,9 @@ OBJS-$(CONFIG_AMR_NB_AT_DECODER)          += audiotoolboxdec.o
 OBJS-$(CONFIG_EAC3_AT_DECODER)            += audiotoolboxdec.o
 OBJS-$(CONFIG_GSM_MS_AT_DECODER)          += audiotoolboxdec.o
 OBJS-$(CONFIG_ILBC_AT_DECODER)            += audiotoolboxdec.o
-OBJS-$(CONFIG_MP1_AT_DECODER)             += audiotoolboxdec.o mpegaudiodecheader.o
-OBJS-$(CONFIG_MP2_AT_DECODER)             += audiotoolboxdec.o mpegaudiodecheader.o
-OBJS-$(CONFIG_MP3_AT_DECODER)             += audiotoolboxdec.o mpegaudiodecheader.o
+OBJS-$(CONFIG_MP1_AT_DECODER)             += audiotoolboxdec.o mpegaudiodata.o mpegaudiodecheader.o
+OBJS-$(CONFIG_MP2_AT_DECODER)             += audiotoolboxdec.o mpegaudiodata.o mpegaudiodecheader.o
+OBJS-$(CONFIG_MP3_AT_DECODER)             += audiotoolboxdec.o mpegaudiodata.o mpegaudiodecheader.o
 OBJS-$(CONFIG_PCM_MULAW_AT_DECODER)       += audiotoolboxdec.o
 OBJS-$(CONFIG_PCM_ALAW_AT_DECODER)        += audiotoolboxdec.o
 OBJS-$(CONFIG_QDMC_AT_DECODER)            += audiotoolboxdec.o
@@ -862,7 +862,7 @@ OBJS-$(CONFIG_LIBGSM_MS_ENCODER)          += libgsmenc.o
 OBJS-$(CONFIG_LIBILBC_DECODER)            += libilbc.o
 OBJS-$(CONFIG_LIBILBC_ENCODER)            += libilbc.o
 OBJS-$(CONFIG_LIBKVAZAAR_ENCODER)         += libkvazaar.o
-OBJS-$(CONFIG_LIBMP3LAME_ENCODER)         += libmp3lame.o mpegaudiodecheader.o
+OBJS-$(CONFIG_LIBMP3LAME_ENCODER)         += libmp3lame.o mpegaudiodata.o mpegaudiodecheader.o
 OBJS-$(CONFIG_LIBOPENCORE_AMRNB_DECODER)  += libopencore-amr.o
 OBJS-$(CONFIG_LIBOPENCORE_AMRNB_ENCODER)  += libopencore-amr.o
 OBJS-$(CONFIG_LIBOPENCORE_AMRWB_DECODER)  += libopencore-amr.o