Fixed checksum file and validated file integrity (#2932)

Co-authored-by: Param Saini <paramdeep.saini@oracle.com>

Author: Brijeshthummar02

OracleDatabase/RAC/OracleRealApplicationClusters/containerfiles/19.3.0/Checksum

@@ -1,2 +1,2 @@
-b7c4c66f801f92d14faa0d791ccda721  19.3.0/LINUX.X64_193000_db_home.zip
-1858bd0d281c60f4ddabd87b1c214a4f  19.3.0/LINUX.X64_193000_grid_home.zip
+b7c4c66f801f92d14faa0d791ccda721  19.3.0/LINUX.X64_193000_grid_home.zip
+1858bd0d281c60f4ddabd87b1c214a4f  19.3.0/LINUX.X64_193000_db_home.zip