makefile: Clean up missed object files with "make clean"

In some builds, the following object files could be left behind
after make clean:

./libavfilter/metal/utils.o
./libavfilter/metal/vf_yadif_videotoolbox.metallib.o
./libavcodec/x86/h26x/h2656dsp.o
./libavcodec/neon/mpegvideo.o
./ffbuild/bin2c_host.o

Fixes: http://trac.ffmpeg.org/ticket/10895

Signed-off-by: Martin Storsjö <martin@martin.st>

ffbuild/common.mak

@@ -140,7 +140,7 @@ else
 endif
 
 clean::
-	$(RM) $(BIN2CEXE)
+	$(RM) $(BIN2CEXE) $(CLEANSUFFIXES:%=ffbuild/%)
 
 %.c %.h %.pc %.ver %.version: TAG = GEN
 

libavcodec/neon/Makefile

@@ -1 +1,4 @@
+clean::
+	$(RM) $(CLEANSUFFIXES:%=libavcodec/neon/%)
+
 OBJS-$(CONFIG_MPEGVIDEO)          += neon/mpegvideo.o

libavcodec/x86/vvc/Makefile

@@ -1,5 +1,5 @@
 clean::
-	$(RM) $(CLEANSUFFIXES:%=libavcodec/x86/vvc/%)
+	$(RM) $(CLEANSUFFIXES:%=libavcodec/x86/vvc/%) $(CLEANSUFFIXES:%=libavcodec/x86/h26x/%)
 
 OBJS-$(CONFIG_VVC_DECODER)             += x86/vvc/vvcdsp_init.o \
                                           x86/h26x/h2656dsp.o

libavfilter/Makefile

@@ -666,6 +666,7 @@ TOOLS-$(CONFIG_LIBZMQ) += zmqsend
 
 clean::
 	$(RM) $(CLEANSUFFIXES:%=libavfilter/dnn/%) $(CLEANSUFFIXES:%=libavfilter/opencl/%) \
+              $(CLEANSUFFIXES:%=libavfilter/metal/%) \
               $(CLEANSUFFIXES:%=libavfilter/vulkan/%)
 
 OPENCL = $(subst $(SRC_PATH)/,,$(wildcard $(SRC_PATH)/libavfilter/opencl/*.cl))