exec_environ.pp: Install libaio1 to enable asynchronous I/O system calls

Install Linux kernel AIO access library libaio1 to enable userspace to use asynchronous I/O system calls.
This can improve performance for applications like databases or webservers

Bug: 68615
Change-Id: I482c530ef8b47e21f3f4a9107fd41f3b4416fd0e
Merge "exec_environ.pp: Install libaio1 to enable asynchronous I/O system calls" into production