Unable to launch vm at the second time with pty,/run/acrn/life_mngr_$vm_name parameter added in the launch script

[lirui34]

Describe the bug
After adding parameter pty,/run/acrn/life_mngr_$vm_name into the launch script, the vm is able to launch at the first try but fail at the second time once perform the poweroff operation in the vm...

Platform
EHL

Codebase
HV release_2.4 branch

Scenario
Hybrid_rt

To Reproduce

1. Setting below parameter into the launch script:
   --pm_by_vuart pty,/run/acrn/life_mngr_$vm_name \
2. Try the first launch.
3. Poweroff the vm and then try the second launch.
4. VM launch fails and you will see the error prompt that fail to init life_mngr socket:

mmap ptr 0x0x7f6494bf6000 -> baseaddr 0x0x7f6494c00000
mmap 0x20000000@0x7f6494c00000
touch 256 pages with pagesz 0x200000
mmap 0x200000@0x7f6594a00000
touch 1 pages with pagesz 0x200000

really setup hugepage with:
        level 0 - lowmem 0x20000000, biosmem 0x200000, highmem 0x0
vm_init_vdevs
pm_by_vuart_init idx: 0, path: /run/acrn/life_mngr_post_vm_id2
initiate a connection on a socket error
create socket to connect life-cycle manager failed
Unable to init vdev (111) 

[fuzhongl]

fixed in v2.5