component/bt: add conditional compilation direvatives to control the source code building of SBC codec

components/bt/bluedroid/external/sbc/decoder/srce/bitstream-decode.c

@@ -33,10 +33,13 @@ Functions for manipulating input bitstreams.
 @{
 */
 
+#include "bt_target.h"
 #include "oi_stddefs.h"
 #include "oi_bitstream.h"
 #include "oi_assert.h"
 
+#if (defined(SBC_DEC_INCLUDED) && SBC_DEC_INCLUDED == TRUE)
+
 PRIVATE void OI_BITSTREAM_ReadInit(OI_BITSTREAM *bs,
                                    const OI_BYTE *buffer)
 {
@@ -89,4 +92,4 @@ PRIVATE OI_UINT8 OI_BITSTREAM_ReadUINT8Aligned(OI_BITSTREAM *bs)
 @}
 */
 
-
+#endif /* #if (defined(SBC_DEC_INCLUDED) && SBC_DEC_INCLUDED == TRUE) */