Updated the patch to have fpm flag check

Signed-off-by: Abhishek Dosi <abdosi@microsoft.com>

src/sonic-frr/patch/0053-Patch-to-send-tag-value-associated-with-route-via-ne.patch

@@ -1,37 +1,49 @@
-From 1a8b3715a88aeaa4bda1ac445aa4992a14f33f31 Mon Sep 17 00:00:00 2001
+From dd71a11ab9543622553a3835dac6513faa27b990 Mon Sep 17 00:00:00 2001
 From: Abhishek Dosi <abdosi@microsoft.com>
-Date: Fri, 8 Nov 2024 02:19:37 +0000
-Subject: [PATCH] Patch to send tag value associated with route via netlink in
+Date: Wed, 27 Nov 2024 02:45:50 +0000
+Subject: [PATCH] Patch to send tag value associated with route via netlink in 
  RTA_PRIORITY field.
 
 Signed-off-by: Abhishek Dosi <abdosi@microsoft.com>
 ---
- zebra/rt_netlink.c | 10 +++++++++-
- 1 file changed, 9 insertions(+), 1 deletion(-)
+ zebra/rt_netlink.c | 23 ++++++++++++++++++++---
+ 1 file changed, 20 insertions(+), 3 deletions(-)
 
 diff --git a/zebra/rt_netlink.c b/zebra/rt_netlink.c
-index 3f51894be..65f598aad 100644
+index 3f51894be..33818c99b 100644
 --- a/zebra/rt_netlink.c
 +++ b/zebra/rt_netlink.c
-@@ -2113,9 +2113,17 @@ ssize_t netlink_route_multipath_msg_encode(int cmd,
+@@ -2113,10 +2113,27 @@ ssize_t netlink_route_multipath_msg_encode(int cmd,
  	 * path(s)
  	 * by the routing protocol and for communicating with protocol peers.
  	 */
-+
-+	/* Patch to send tag value as route attribute using RTA_PRIORITY
-+	 * which can be used as metadata/attribute to take application specific
-+	 * action. As seen in above comment this field is not use anyways and can be
-+	 * use by fpmsyncd */
- 	if (!nl_attr_put32(&req->n, datalen, RTA_PRIORITY,
+-	if (!nl_attr_put32(&req->n, datalen, RTA_PRIORITY,
 -			   ROUTE_INSTALLATION_METRIC))
-+		           cmd == RTM_DELROUTE ? dplane_ctx_get_old_tag(ctx) :
-+				                 dplane_ctx_get_tag(ctx)))
++	if (fpm)
 +	{
++            /* Patch to send tag value as route attribute using RTA_PRIORITY
++	     * which can be used as metadata/attribute to take application specific
++	     * action. As seen in above comment this field is not use anyways and can be
++	     * use by fpmsyncd */
++            if (!nl_attr_put32(&req->n, datalen, RTA_PRIORITY,
++		               cmd == RTM_DELROUTE ? dplane_ctx_get_old_tag(ctx) :
++				                     dplane_ctx_get_tag(ctx)))
++	    {
  		return 0;
+-
++	    }
++	}
++	else
++	{
++	    if (!nl_attr_put32(&req->n, datalen, RTA_PRIORITY,
++			       ROUTE_INSTALLATION_METRIC))
++	    {
++                return 0;
++	    }
 +	}
-
  #if defined(SUPPORT_REALMS)
  	if (cmd == RTM_DELROUTE)
+ 		tag = dplane_ctx_get_old_tag(ctx);
 -- 
 2.25.1