Allow compaction non shared and non executable memory mappings

This patch will allow more private memory to be compacted especially
for those read only and read write file mappings that we were
disallowing reduced the restriction of vmas not compacted to only code
and shared pages.

Bug: 286597135
Test: am compact full <pid>
Test: Verify that showmap <pid> shows the swapped vmas after compaction
Change-Id: I223ed3268ce0bdced222b78c3bd08d3e464440ee