xtables-addons: update to 3.5

Add xt_PROTO target.

Signed-off-by: DENG Qingfang <dengqf6@mail2.sysu.edu.cn>

net/xtables-addons/patches/100-add-rtsp-conntrack.patch

@@ -1715,7 +1715,7 @@
 +module_exit(fini);
 --- a/extensions/Kbuild
 +++ b/extensions/Kbuild
-@@ -26,6 +26,7 @@ obj-${build_lscan}       += xt_lscan.o
+@@ -27,6 +27,7 @@ obj-${build_lscan}       += xt_lscan.o
  obj-${build_pknock}      += pknock/
  obj-${build_psd}         += xt_psd.o
  obj-${build_quota2}      += xt_quota2.o
@@ -1725,7 +1725,7 @@
  -include ${M}/Kbuild.*
 --- a/mconfig
 +++ b/mconfig
-@@ -22,3 +22,4 @@ build_lscan=m
+@@ -23,3 +23,4 @@ build_lscan=m
  build_pknock=m
  build_psd=m
  build_quota2=m