Fix smoke/fullview_frr_manualtest.sh test

[christophefontaine]

smoke/fullview_frr_manualtest.sh fails but because of a gobgp/frr crash.

+ ip netns exec bgp-peer gobgp mrt inject global build//latest-bview
failed to parse: unknown evpn subtype: 249
ZEBRA: [QH9AB-Y4XMZ][EC 100663314] STARVATION: task dplane_thread_loop (44d4b0) ran for 33713ms (cpu time 210ms)
BGP: [QH9AB-Y4XMZ][EC 100663314] STARVATION: task bgp_process_packet (49f133) ran for 6135ms (cpu time 521ms)
BGP: [VQK5M-9G0V1][EC 100663315] CPU starvation: {(event *)0x7ffe38cd2550 arg=0x10722440 ready               (bgp_generate_updgrp_packets)() (&connection->t_generate_updgrp_packets) from /home/rjarry/upstream/grout/subprojects/frr-frr-10.6.1/bgpd/bgp_io.c:169} getting executed 8062ms late, warning threshold 4000ms. System load: 68.01, 21.04, 8.82
ZEBRA: [VQK5M-9G0V1][EC 100663315] CPU starvation: {(event *)0x7fffbc326650 arg=0x32bf3e40 ready               wheel_timer_thread() &wheel->timer from /home/rjarry/upstream/grout/subprojects/frr-frr-10.6.1/lib/wheel.c:50} getting executed 10166ms late, warning threshold 4000ms. System load: 68.01, 21.04, 8.82
failed to send: EOF

real	9m11.075s
user	22m54.887s
sys	4m18.091s
smoke/fullview_frr_manualtest.sh: line 1: 1352045 Killed                     ip netns exec bgp-peer gobgpd -f $1/gobgpd.conf

Originally posted by @rjarry in #697 (comment)