eventinj in ubuntu_kvm_unit_tests timeout on openstack instance

[Po-Hsu Lin]

Issue found after adding openstack support this cycle (sru-20230320)

Test passed on bare-metals but failed with timeout on openstack VM instead.

Test failed with:
 Running '/home/ubuntu/autotest/client/tmp/ubuntu_kvm_unit_tests/src/kvm-unit-tests/tests/eventinj'
 BUILD_HEAD=d8edb59a
 timeout -k 1s --foreground 90s /usr/bin/qemu-system-x86_64 --no-reboot -nodefaults -device pc-testdev -device isa-debug-exit,iobase=0xf4,iosize=0x4 -vnc none -serial stdio -device pci-testdev -machine accel=kvm -kernel /tmp/tmp.VILkt8fo4C -smp 1 # -initrd /tmp/tmp.D1nWBPnsTG
 enabling apic
 smp: waiting for 0 APs
 paging enabled
 cr0 = 80010011
 cr3 = 1007000
 cr4 = 20
 Try to divide by 0
 DE isr running divider is 0
 Result is 150
 PASS: DE exception
 Try int 3
 BP isr running
 After int 3
 PASS: BP exception
 Sending vec 33 to self
 irq1 running
 After vec 33 to self
 PASS: vec 33
 Try int $33
 irq1 running
 After int $33
 PASS: int $33
 Sending vec 32 and 33 to self
 irq1 running
 irq0 running
 After vec 32 and 33 to self
 PASS: vec 32/33
 Sending vec 32 and int $33
 qemu-system-x86_64: terminating on signal 15 from pid 10550 (timeout)
 FAIL eventinj (timeout; duration=90s)