net: lan966x: Add IS1 VCAP model

Provide IS1 (ingress stage 1) VCAP model for lan966x.
This provides classification actions for lan966x.
Signed-off-by: Horatiu Vultur <horatiu.vultur@microchip.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/microchip/vcap/vcap_api_debugfs_kunit.c

@@ -387,7 +387,7 @@ static const char * const test_admin_info_expect[] = {
 	"default_cnt: 73\n",
 	"require_cnt_dis: 0\n",
 	"version: 1\n",
-	"vtype: 3\n",
+	"vtype: 4\n",
 	"vinst: 0\n",
 	"ingress: 1\n",
 	"first_cid: 10000\n",
@@ -435,7 +435,7 @@ static const char * const test_admin_expect[] = {
 	"default_cnt: 73\n",
 	"require_cnt_dis: 0\n",
 	"version: 1\n",
-	"vtype: 3\n",
+	"vtype: 4\n",
 	"vinst: 0\n",
 	"ingress: 1\n",
 	"first_cid: 8000000\n",