rc: split out netgraph modules into own loader chunk

(cherry picked from commit 53f44c89)

plist

@@ -110,6 +110,7 @@
 /usr/local/etc/rc.loader.d/20-brand
 /usr/local/etc/rc.loader.d/20-misc
 /usr/local/etc/rc.loader.d/20-modules
+/usr/local/etc/rc.loader.d/20-netgraph
 /usr/local/etc/rc.newipsecdns
 /usr/local/etc/rc.newroutedns
 /usr/local/etc/rc.newwanip

src/etc/rc.loader.d/20-modules

@@ -12,40 +12,3 @@ if_vlan_load="YES"
 pf_load="YES"
 pflog_load="YES"
 pfsync_load="YES"
-# The netgraph(4) framework is loaded here
-# for backwards compat with the pre-16.7
-# kernel configuration that compiled all of
-# these modules into the kernel.  This list
-# needs further pruning and probing, it's
-# possible we do not need frame relay anymore.
-netgraph_load="YES"
-ng_UI_load="YES"
-ng_async_load="YES"
-ng_bpf_load="YES"
-ng_bridge_load="YES"
-ng_car_load="YES"
-ng_cisco_load="YES"
-ng_deflate_load="YES"
-ng_echo_load="YES"
-ng_eiface_load="YES"
-ng_ether_load="YES"
-ng_frame_relay_load="YES"
-ng_hole_load="YES"
-ng_iface_load="YES"
-ng_ksocket_load="YES"
-ng_l2tp_load="YES"
-ng_lmi_load="YES"
-ng_mppc_load="YES"
-ng_one2many_load="YES"
-ng_pipe_load="YES"
-ng_ppp_load="YES"
-ng_pppoe_load="YES"
-ng_pptpgre_load="YES"
-ng_pred1_load="YES"
-ng_rfc1490_load="YES"
-ng_socket_load="YES"
-ng_tcpmss_load="YES"
-ng_tee_load="YES"
-ng_tty_load="YES"
-ng_vjc_load="YES"
-ng_vlan_load="YES"

src/etc/rc.loader.d/20-netgraph

+# The netgraph(4) framework is loaded here
+# for backwards compat with the pre-16.7
+# kernel configuration that compiled all of
+# these modules into the kernel.  This list
+# needs further pruning and probing, it's
+# possible we do not need frame relay anymore.
+netgraph_load="YES"
+ng_UI_load="YES"
+ng_async_load="YES"
+ng_bpf_load="YES"
+ng_bridge_load="YES"
+ng_car_load="YES"
+ng_cisco_load="YES"
+ng_deflate_load="YES"
+ng_echo_load="YES"
+ng_eiface_load="YES"
+ng_ether_load="YES"
+ng_frame_relay_load="YES"
+ng_hole_load="YES"
+ng_iface_load="YES"
+ng_ksocket_load="YES"
+ng_l2tp_load="YES"
+ng_lmi_load="YES"
+ng_mppc_load="YES"
+ng_one2many_load="YES"
+ng_pipe_load="YES"
+ng_ppp_load="YES"
+ng_pppoe_load="YES"
+ng_pptpgre_load="YES"
+ng_pred1_load="YES"
+ng_rfc1490_load="YES"
+ng_socket_load="YES"
+ng_tcpmss_load="YES"
+ng_tee_load="YES"
+ng_tty_load="YES"
+ng_vjc_load="YES"
+ng_vlan_load="YES"