* add build arch parameter in Makefile
Add parameter BUILDARCH for make file. DB base builds pg96 for x86_64 only
Signed-off-by: Wang Yan <wangyan@vmware.com>
1, use the pg source and photon spec to build postgres 9.6
2, install 9.6 on the photon 4.0
3, then leverage pg_upgrade to handle the pg major version migration
Signed-off-by: Wang Yan <wangyan@vmware.com>