FS-9785: Fix src/switch_ivr_play_say.c:1668:48: error: ‘*’ in boolean context,…

FS-9785: Fix src/switch_ivr_play_say.c:1668:48: error: ‘*’ in boolean context, suggest ‘&&’ instead [-Werror=int-in-bool-context]

src/switch_ivr_play_say.c

@@ -1665,7 +1665,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_play_file(switch_core_session_t *sess
 				}
 			}
 
-			buflen = FILE_STARTSAMPLES * sizeof(*abuf) * fh->cur_channels ? fh->cur_channels : fh->channels;
+			buflen = (FILE_STARTSAMPLES * sizeof(*abuf) * fh->cur_channels) > 0 ? fh->cur_channels : fh->channels;
 
 			if (buflen > write_frame.buflen) {
 				abuf = realloc(abuf, buflen);