fix region typo

Author: mletalie

modules/rosa-hcp-classic-comparison.adoc

@@ -61,8 +61,8 @@
 * US West - Oregon (us-west-2)
 * Asia Pacific - Tokyo (ap-northeast-1)
 * Asia Pacific - Hyderabad (ap-south-2)
-* Asia Pacific - Singapore (ap-southest-1)
-* Asia Pacific - Sydney (ap-southest-2)
+* Asia Pacific - Singapore (ap-southeast-1)
+* Asia Pacific - Sydney (ap-southeast-2)
 * Asia Pacific - Jakarta (ap-southeast-3)
 * Asia Pacific - Melbourne (ap-southeast-4)
 * Canada - Central (ca-central-1)