[202412] [FRR] Add support for 514 BGP sessions

[vivekrnv]

Add support for 512 BGP sessions

Backport sonic-net/sonic-buildimage#22390 to 202412

Patch	Upstream Commit
0044-zebra-Prevent-starvation-in-dplane_thread_loop.patch	6faad863
0083-bgpd-fix-vty-output-of-evpn-route-target-AS4.patch	20b3ab48
0084-zebra-Ensure-dplane-does-not-send-work-back-to-maste.patch	c4115522
0085-zebra-Limit-mutex-for-obuf-to-when-we-access-obuf.patch	c58da10d
0086-bgpd-backpressure-Fix-to-pop-items-off-zebra_announc.patch	898852f
0087-zebra-fnc-obuf-could-be-accessed-without-a-lock.patch	e7a1fbbcf
0088-zebra-Add-show-fpm-status-json-command.patch	0a9e8ef49
0089-doc-Add-show-fpm-status-json-command-to-documentatio.patch	a0c4fe2ca
0090-zebra-avoid-a-race-during-FPM-dplane-plugin-shutdown.patch	277784f
0091-zebra-add-nexthop-counter-to-show-zebra-dplane-comma.patch	e36e570c
0092-zebra-Installation-success-should-not-set-NHG-as-val.patch	910b2c5a
0093-zebra-When-reinstalling-a-NHG-set-REINSTALL-flag.patch	b2ade8e
0094-zebra-Conslidate-zebra_nhg_set_valid-invalid-functio.patch	6ee9cc68
0095-zebra-Properly-note-that-a-nhg-s-nexthop-has-gone-do.patch	3b9428a7
0096-zebra-be-consistent-about-v6-nexthops-for-v4-routes.patch	c93bc371
0097-lib-zebra-Modify-nexthop_cmp-to-allow-you-to-use-wei.patch	75268f01
0098-zebra-Create-Singleton-nhg-s-without-weights.patch	ae4a1315
0099-zebra-Allow-blackhole-singleton-nexthops-to-be-v6.patch	ae397ad9
0100-zebra-Allow-for-initial-deny-of-installation-of-nhe-.patch	4bf2c11f
0101-zebra-Properly-note-that-a-nhg-s-nexthop-has-gone-do.patch	892e8179
0102-zebra-Reinstall-nexthop-when-interface-comes-back-up.patch	279f427c
0103-zebra-Attempt-to-reuse-NHG-after-interface-up-and-ro.patch	98d56711
0104-zebra-Expose-_route_entry_dump_nh-so-it-can-be-used.patch	4fb44993
0105-zebra-Fix-resetting-valid-flags-for-NHG-dependents.patch	6e95686b
0106-zebra-Fix-leaked-nhe.patch	a84d2bc0
0107-zebra-Uninstall-NHG-in-some-situations.patch	d1cba73a
0108-zebra-Optimize-invoking-nhg-compare-func.patch	0faa70a5
0109-zebra-Nexthops-need-to-be-ACTIVE-in-some-cases.patch	df56b92b
0110-zebra-On-Nexthop-install-failure-don-t-set-Installat.patch	4b2b1a9a
0111-zebra-Bring-up-514-BGP-neighbor-sessions.patch	ea399e15
0112-lib-Add-support-for-stream-buffer-to-expand.patch	65b3ee4e
0113-zebra-zebra-crash-for-zapi-stream.patch	c122afdb
0114-bgpd-Replace-per-peer-connection-error-with-per-bgp.patch	10c127bc
0115-bgpd-remove-apis-from-bgp_route.h.patch	1d5a8a20
0116-bgpd-batch-peer-connection-error-clearing.patch	4baa9f2d
0117-zebra-move-peer-conn-error-list-to-connection-struct.patch	411abd6b
0118-bgpd-Allow-batch-clear-to-do-partial-work-and-contin.patch	b68be906
0119-zebra-send-v6-fast-RA-at-faster-interval.patch	c8f12a4f
0120-lib-add-option-to-start-stop-wheel-timer.patch	ca0adcdd
0121-bgpd-Paths-received-from-shutdown-peer-not-deleted.patch	2cbfc7ec

Verification:
Verified the changes on topology with scaled BGP tests

[r12f]

not too sure if this id getting duplicated will cause any potential issue, but since it is validated, I will still getting it merged.

@vivekrnv as FYI, just in case.