[action] [PR:17247] [FRR]zebra: Fix fpm multipath encap addition

[mssonicbld]

Why I did it

To fix the EVPN type5 failure seen in FRR when there are multipaths for nexthop. The type5 routes were queued

show ip route vrf Vrf1
Codes: K - kernel route, C - connected, S - static, R - RIP,
 O - OSPF, I - IS-IS, B - BGP, E - EIGRP, N - NHRP,
 T - Table, v - VNC, V - VNC-Direct, A - Babel, F - PBR,
 f - OpenFabric,
 > - selected route, LICENSE MAINTAINERS Makefile Makefile.cache Makefile.work README.buildsystem.md README.md ThirdPartyLicenses.txt azure-pipelines.yml build_debian.sh build_debug_docker_j2.sh build_docker.sh build_image.sh check_install.py device dockers files functions.sh get_docker-base.sh install_sonic.py installer onie-image-arm64.conf onie-image-armhf.conf onie-image.conf onie-mk-demo.sh platform push_docker.sh rules scripts slave.mk sonic-slave-bookworm sonic-slave-bullseye sonic-slave-buster sonic-slave-jessie sonic-slave-stretch src update_screen.sh - FIB route, q - queued, r - rejected, b - backup
 t - trapped, o - offload failure

VRF Vrf1:
B>q 5.5.5.0/24 [200/0] via 30.0.0.2, Vlan100 onlink, weight 1, 00:00:40
 q via 40.0.0.3, Vlan100 onlink, weight 1, 00:00:40
C>* 10.0.0.0/24 is directly connected, Vlan10, 00:00:43
B>q 100.0.0.0/24 [200/0] via 30.0.0.2, Vlan100 onlink, weight 1, 00:00:40
 q via 40.0.0.3, Vlan100 onlink, weight 1, 00:00:40

Work item tracking

• Microsoft ADO (number only):

How I did it

Porting the FRR fix FRRouting/frr#14835

How to verify it

Validated EVPN multipath with the scenario and confirmed its working.

Which release branch to backport (provide reason below if selected)

• 201811
• 201911
• 202006
• 202012
• 202106
• 202111
• 202205
• 202211
• 202305

Tested branch (Please provide the tested image version)

• 202305 image on top of commit https://github.com/sonic-net/sonic-buildimage/tree/5c787191ff346c694033547f643f81969027e05b

Description for the changelog

Link to config_db schema for YANG module changes

A picture of a cute animal (not mandatory but encouraged)

[mssonicbld]

Original PR: #17247