samba4: update to 4.11.4

* update to 4.11.4 (python3 version)
* re-enable AD-DC option
* add 'samba_nice' UCI option via "config procd 'extra'"
* restructure buildsteps (don't rely on waf --targets logic)
* move quota option into VFS
* move ACL option into AC-DC
* add more admin-tools
* use rpath_install for libs
* fix rpath + rstrip

Signed-off-by: Andy Walsh <andy.walsh44+github@gmail.com>

net/samba4/patches/006-netdb-defines.patch

@@ -0,0 +1,19 @@
+diff --git a/nsswitch/wins.c b/nsswitch/wins.c
+index dccb6dd..bb24acb 100644
+--- a/nsswitch/wins.c
++++ b/nsswitch/wins.c
+@@ -39,6 +39,14 @@ static pthread_mutex_t wins_nss_mutex = PTHREAD_MUTEX_INITIALIZER;
+ #define INADDRSZ 4
+ #endif
+ 
++#ifndef NETDB_INTERNAL
++#define NETDB_INTERNAL -1
++#endif
++
++#ifndef NETDB_SUCCESS
++#define NETDB_SUCCESS 0
++#endif
++
+ NSS_STATUS _nss_wins_gethostbyname_r(const char *hostname,
+ 				     struct hostent *he,
+ 				     char *buffer,