net.c: move all sockaddr parsers to a separate file

* sockaddr_ll.c: Rename to sockaddr.c
(print_sockaddr_data_ll): Add static keyword.
* Makefile.am (strace_SOURCES): Likewise.
* defs.h (print_sockaddr_data_ll): Remove.
(addrfams): New prototype.
* net.c: Move all sockaddr parsers to sockaddr.c.
diff --git a/Makefile.am b/Makefile.am
index 3edd76f..c506f16 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -198,7 +198,7 @@
 	signalfd.c	\
 	sigreturn.c	\
 	sock.c		\
-	sockaddr_ll.c	\
+	sockaddr.c	\
 	socketutils.c	\
 	sram_alloc.c	\
 	statfs.c	\