Update storage-files-redundancy-premium-zrs.md

Added updated list of ZRS regions

Author: gayatrikishore

includes/storage-files-redundancy-premium-zrs.md

@@ -12,10 +12,12 @@ ZRS for premium file shares is available for a subset of Azure regions:
 - (Asia Pacific) Japan East
 - (Asia Pacific) Southeast Asia
 - (Asia Pacific) Korea Central
+- (Asia Pacific) East Asia
 - (Europe) France Central
 - (Europe) North Europe
 - (Europe) West Europe
 - (Europe) UK South
+- (Europe) Poland Central
 - (Middle East) Qatar Central
 - (North America) East US
 - (North America) East US 2