core/conv: use proper filenames

We already have generic convolutional transcoding implementation
written by Sylvain Munaut and named 'conv.c', so 'viterbi_*' names
looked a bit confusing.

Let's use a single naming scheme for Viterbi related code.

Change-Id: I61062a8d1fbf5f5fc85b4fac58dc4e9fa8b5ef90

src/Makefile.am

@@ -21,28 +21,28 @@ libosmocore_la_SOURCES = timer.c timer_gettimeofday.c select.c signal.c msgb.c b
 			 conv.c application.c rbtree.c strrb.c \
 			 loggingrb.c crc8gen.c crc16gen.c crc32gen.c crc64gen.c \
 			 macaddr.c stat_item.c stats.c stats_statsd.c prim.c \
-			 viterbi.c viterbi_generic.c sercomm.c
+			 conv_acc.c conv_acc_generic.c sercomm.c
 
 if HAVE_SSE3
-libosmocore_la_SOURCES += viterbi_sse.c
+libosmocore_la_SOURCES += conv_acc_sse.c
 if HAVE_SSE4_1
-viterbi_sse.lo : CFLAGS += -msse3 -msse4.1
+conv_acc_sse.lo : CFLAGS += -msse3 -msse4.1
 else
-viterbi_sse.lo : CFLAGS += -msse3
+conv_acc_sse.lo : CFLAGS += -msse3
 endif
 
 if HAVE_AVX2
-libosmocore_la_SOURCES += viterbi_sse_avx.c
+libosmocore_la_SOURCES += conv_acc_sse_avx.c
 if HAVE_SSE4_1
-viterbi_sse_avx.lo : CFLAGS += -msse3 -mavx2 -msse4.1
+conv_acc_sse_avx.lo : CFLAGS += -msse3 -mavx2 -msse4.1
 else
-viterbi_sse_avx.lo : CFLAGS += -msse3 -mavx2
+conv_acc_sse_avx.lo : CFLAGS += -msse3 -mavx2
 endif
 endif
 endif
 
 BUILT_SOURCES = crc8gen.c crc16gen.c crc32gen.c crc64gen.c
-EXTRA_DIST = viterbi_sse_common.h
+EXTRA_DIST = conv_acc_sse_impl.h
 
 if ENABLE_PLUGIN
 libosmocore_la_SOURCES += plugin.c

src/conv_acc_sse.c

@@ -55,7 +55,7 @@
 /**
  * Include common SSE implementation
  */
-#include <viterbi_sse_common.h>
+#include <conv_acc_sse_impl.h>
 
 /* Aligned Memory Allocator
  * SSE requires 16-byte memory alignment. We store relevant trellis values

src/conv_acc_sse_avx.c

@@ -55,7 +55,7 @@
 /**
  * Include common SSE implementation
  */
-#include <viterbi_sse_common.h>
+#include <conv_acc_sse_impl.h>
 
 /* Aligned Memory Allocator
  * SSE requires 16-byte memory alignment. We store relevant trellis values