iptables: update to 1.8.3

Update iptables to 1.8.3

ChangeLog:
  https://netfilter.org/projects/iptables/files/changes-iptables-1.8.3.txt

Removed upstream patches:
- 001-extensions_format-security_fixes_in_libip.patch
- 002-include_fix_build_with_kernel_headers_before_4_2.patch
- 003-ebtables-vlan-fix_userspace_kernel_headers_collision.patch

Altered patches:
- 200-configurable_builtin.patch
- 600-shared-libext.patch

No notable size changes

Signed-off-by: Deng Qingfang <dengqf6@mail2.sysu.edu.cn>
Signed-off-by: Hans Dedecker <dedeckeh@gmail.com> [lipibtc ABI_VERSION fix]

package/network/utils/iptables/patches/103-optional-xml.patch

@@ -1,6 +1,6 @@
 --- a/iptables/xtables-legacy-multi.c
 +++ b/iptables/xtables-legacy-multi.c
-@@ -31,8 +31,10 @@ static const struct subcommand multi_sub
+@@ -32,8 +32,10 @@ static const struct subcommand multi_sub
  
  
  #endif