Add AMIs in ap-northeast-2 and ap-south-1

(cherry picked from commit 94cc18e9aaacf705afc61e8f9836fa8f7a1cdf51)

nixos/maintainers/scripts/ec2/create-amis.sh

···
 
 types="hvm pv"
 stores="ebs s3"
-regions="eu-west-1 eu-central-1 us-east-1 us-west-1 us-west-2 ap-southeast-1 ap-southeast-2 ap-northeast-1 sa-east-1"
+regions="eu-west-1 eu-central-1 us-east-1 us-west-1 us-west-2 ap-southeast-1 ap-southeast-2 ap-northeast-1 ap-northeast-2 sa-east-1 ap-south-1"
 
 for type in $types; do
     link=$stateDir/$type