[caclmgrd]load_sonic_global_db_config() should only be called for multiasic platform

[mlok-nokia]

Description

python script caclmgrd calls function load_sonic_global_db_config() without checking if the platform is multiasic platform. This cause an error message has been logged.

Steps to reproduce the issue:

1. Reboot the system.
2. checking the log message file by executing the following command
   sudo grep "Sonic database" /var/log/syslog*
   The error message will be shown as below:
   Aug 26 21:51:36.790176 ixre-fal-board3 ERR caclmgrd[1262]: :- initializeGlobalConfig: Sonic database config global file doesn't exist at /var/run/redis/sonic-db/database_global.json

Describe the results you received:

admin@sonic:~$ sudo grep "Sonic database" /var/log/sys*
Aug 26 21:51:36.790176 sonic ERR caclmgrd[1262]: :- initializeGlobalConfig: Sonic database config global file doesn't exist at /var/run/redis/sonic-db/database_global.json

Describe the results you expected:

There should not be such as error message in log file.

Output of show version:

Based on commit 3b301279
It seems the issue still exists in the latest github code

Output of show techsupport:

(paste your output here or download and attach the file here )

Additional information you deem important (e.g. issue happens only occasionally):

[judyjoseph]

I think we can close this issue - taken care by #8812